256704332 has 12 divisors (see below), whose sum is σ = 450767856. Its totient is φ = 127913520.

The previous prime is 256704323. The next prime is 256704341. The reversal of 256704332 is 233407652.

It is an interprime number because it is at equal distance from previous prime (256704323) and next prime (256704341).

It is a super-2 number, since 2×256704332² = 131794228135132448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 108344 + ... + 110687.

It is an arithmetic number, because the mean of its divisors is an integer number (37563988).

Almost surely, 2^256704332 is an apocalyptic number.

It is an amenable number.

256704332 is a deficient number, since it is larger than the sum of its proper divisors (194063524).

256704332 is a wasteful number, since it uses less digits than its factorization.

256704332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219328 (or 219326 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 256704332 is about 16021.9952565216. The cubic root of 256704332 is about 635.5422090961.

The spelling of 256704332 in words is "two hundred fifty-six million, seven hundred four thousand, three hundred thirty-two".