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1472905840 = 245717219479
BaseRepresentation
bin101011111001010…
…1100001001110000
310210122112100222011
41113302230021300
511004030441330
6402053252304
751333331060
oct12762541160
93718470864
101472905840
11696464a5a
12351334094
131a61c6b23
14dd88d3a0
158949682a
hex57cac270

1472905840 has 240 divisors, whose sum is σ = 4385433600. Its totient is φ = 449335296.

The previous prime is 1472905829. The next prime is 1472905843. The reversal of 1472905840 is 485092741.

It is a super-2 number, since 2×14729058402 = 4338903227012211200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1472905793 and 1472905802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1472905843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3074721 + ... + 3075199.

It is an arithmetic number, because the mean of its divisors is an integer number (18272640).

Almost surely, 21472905840 is an apocalyptic number.

1472905840 is a gapful number since it is divisible by the number (10) 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 1472905840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2192716800).

1472905840 is an abundant number, since it is smaller than the sum of its proper divisors (2912527760).

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

1472905840 is a wasteful number, since it uses less digits than its factorization.

1472905840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1472905840 is about 38378.4554144640. The cubic root of 1472905840 is about 1137.7800854389.

The spelling of 1472905840 in words is "one billion, four hundred seventy-two million, nine hundred five thousand, eight hundred forty".