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4331040 = 253571289
BaseRepresentation
bin10000100001011000100000
322011001001220
4100201120200
52102043130
6232455040
751545640
oct20413040
98131056
104331040
112498a7a
12154a480
13b8845c
1480a520
155a8410
hex421620

4331040 has 96 divisors (see below), whose sum is σ = 15603840. Its totient is φ = 989184.

The previous prime is 4331027. The next prime is 4331051. The reversal of 4331040 is 401334.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2716 + ... + 4004.

It is an arithmetic number, because the mean of its divisors is an integer number (162540).

Almost surely, 24331040 is an apocalyptic number.

4331040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4331040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7801920).

4331040 is an abundant number, since it is smaller than the sum of its proper divisors (11272800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4331040 is a wasteful number, since it uses less digits than its factorization.

4331040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 4331040 is about 2081.1150857173. The cubic root of 4331040 is about 163.0036758803.

Adding to 4331040 its reverse (401334), we get a palindrome (4732374).

The spelling of 4331040 in words is "four million, three hundred thirty-one thousand, forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1289 1680 2578 3360 3867 5156 6445 7734 9023 10312 12890 15468 18046 19335 20624 25780 27069 30936 36092 38670 41248 45115 51560 54138 61872 72184 77340 90230 103120 108276 123744 135345 144368 154680 180460 206240 216552 270690 288736 309360 360920 433104 541380 618720 721840 866208 1082760 1443680 2165520 4331040