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6404790 = 235724357
BaseRepresentation
bin11000011011101010110110
3110001101201110
4120123222312
53114423130
6345135450
7105303600
oct30335266
913041643
106404790
113685017
12218a586
131433322
14bca170
15867ab0
hex61bab6

6404790 has 48 divisors (see below), whose sum is σ = 17885232. Its totient is φ = 1463616.

The previous prime is 6404789. The next prime is 6404791. The reversal of 6404790 is 974046.

It is an interprime number because it is at equal distance from previous prime (6404789) and next prime (6404791).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 709 + ... + 3648.

It is an arithmetic number, because the mean of its divisors is an integer number (372609).

Almost surely, 26404790 is an apocalyptic number.

6404790 is an abundant number, since it is smaller than the sum of its proper divisors (11480442).

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

6404790 is a wasteful number, since it uses less digits than its factorization.

6404790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381 (or 4374 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 6404790 is about 2530.7686579377. The cubic root of 6404790 is about 185.7098609822.

The spelling of 6404790 in words is "six million, four hundred four thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 210 245 294 490 735 1470 4357 8714 13071 21785 26142 30499 43570 60998 65355 91497 130710 152495 182994 213493 304990 426986 457485 640479 914970 1067465 1280958 2134930 3202395 6404790