256775304 has 16 divisors (see below), whose sum is σ = 641938320. Its totient is φ = 85591760.

The previous prime is 256775303. The next prime is 256775353. The reversal of 256775304 is 403577652.

It is not an unprimeable number, because it can be changed into a prime (256775303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349462 + ... + 5349509.

It is an arithmetic number, because the mean of its divisors is an integer number (40121145).

Almost surely, 2^256775304 is an apocalyptic number.

256775304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

256775304 is an abundant number, since it is smaller than the sum of its proper divisors (385163016).

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

256775304 is a wasteful number, since it uses less digits than its factorization.

256775304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10698980 (or 10698976 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 256775304 is about 16024.2099337222. The cubic root of 256775304 is about 635.6007739375.

The spelling of 256775304 in words is "two hundred fifty-six million, seven hundred seventy-five thousand, three hundred four".