256313604 has 48 divisors (see below), whose sum is σ = 609638400. Its totient is φ = 83799456.

The previous prime is 256313599. The next prime is 256313623. The reversal of 256313604 is 406313652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157507 + ... + 159125.

It is an arithmetic number, because the mean of its divisors is an integer number (12700800).

Almost surely, 2^256313604 is an apocalyptic number.

It is an amenable number.

256313604 is an abundant number, since it is smaller than the sum of its proper divisors (353324796).

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

256313604 is a wasteful number, since it uses less digits than its factorization.

256313604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 256313604 is about 16009.7971255104. The cubic root of 256313604 is about 635.2195937980.

The spelling of 256313604 in words is "two hundred fifty-six million, three hundred thirteen thousand, six hundred four".