256926902 has 16 divisors (see below), whose sum is σ = 389806992. Its totient is φ = 126996480.

The previous prime is 256926883. The next prime is 256926913. The reversal of 256926902 is 209629652.

256926902 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256926902² = 132022865942635208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256926902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136238 + ... + 138110.

It is an arithmetic number, because the mean of its divisors is an integer number (24362937).

Almost surely, 2^256926902 is an apocalyptic number.

256926902 is a deficient number, since it is larger than the sum of its proper divisors (132880090).

256926902 is a wasteful number, since it uses less digits than its factorization.

256926902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 256926902 is about 16028.9395157634. The cubic root of 256926902 is about 635.7258337963.

The spelling of 256926902 in words is "two hundred fifty-six million, nine hundred twenty-six thousand, nine hundred two".