256888904 has 32 divisors (see below), whose sum is σ = 513928800. Its totient is φ = 119957760.

The previous prime is 256888897. The next prime is 256888939. The reversal of 256888904 is 409888652.

256888904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 10607 + ... + 25025.

It is an arithmetic number, because the mean of its divisors is an integer number (16060275).

Almost surely, 2^256888904 is an apocalyptic number.

It is an amenable number.

256888904 is an abundant number, since it is smaller than the sum of its proper divisors (257039896).

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

256888904 is a wasteful number, since it uses less digits than its factorization.

256888904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14573 (or 14569 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The square root of 256888904 is about 16027.7541782996. The cubic root of 256888904 is about 635.6944921955.

The spelling of 256888904 in words is "two hundred fifty-six million, eight hundred eighty-eight thousand, nine hundred four".