256708268 has 12 divisors (see below), whose sum is σ = 449352960. Its totient is φ = 128321712.

The previous prime is 256708253. The next prime is 256708327. The reversal of 256708268 is 862807652.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22805 + ... + 32147.

It is an arithmetic number, because the mean of its divisors is an integer number (37446080).

Almost surely, 2^256708268 is an apocalyptic number.

It is an amenable number.

256708268 is a deficient number, since it is larger than the sum of its proper divisors (192644692).

256708268 is a wasteful number, since it uses less digits than its factorization.

256708268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16216 (or 16214 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 256708268 is about 16022.1180871943. The cubic root of 256708268 is about 635.5454572965.

The spelling of 256708268 in words is "two hundred fifty-six million, seven hundred eight thousand, two hundred sixty-eight".