256283968 has 28 divisors (see below), whose sum is σ = 512584192. Its totient is φ = 127128960.

The previous prime is 256283957. The next prime is 256283971. The reversal of 256283968 is 869382652.

256283968 is an admirable number.

It is a congruent number.

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, 7638 + ... + 23893.

Almost surely, 2^256283968 is an apocalyptic number.

It is an amenable number.

256283968 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256283968 is a wasteful number, since it uses less digits than its factorization.

256283968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31670 (or 31660 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 256283968 is about 16008.8715404928. The cubic root of 256283968 is about 635.1951106477.

The spelling of 256283968 in words is "two hundred fifty-six million, two hundred eighty-three thousand, nine hundred sixty-eight".