256072004 has 12 divisors (see below), whose sum is σ = 448260624. Its totient is φ = 127997544.

The previous prime is 256071989. The next prime is 256072007. The reversal of 256072004 is 400270652.

It is not an unprimeable number, because it can be changed into a prime (256072007) 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 3 ways as a sum of consecutive naturals, for example, 9659 + ... + 24605.

It is an arithmetic number, because the mean of its divisors is an integer number (37355052).

Almost surely, 2^256072004 is an apocalyptic number.

It is an amenable number.

256072004 is a deficient number, since it is larger than the sum of its proper divisors (192188620).

256072004 is a wasteful number, since it uses less digits than its factorization.

256072004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19234 (or 19232 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 256072004 is about 16002.2499668015. The cubic root of 256072004 is about 635.0199460534.

The spelling of 256072004 in words is "two hundred fifty-six million, seventy-two thousand, four".