256008688 has 40 divisors (see below), whose sum is σ = 535222688. Its totient is φ = 117925632.

The previous prime is 256008677. The next prime is 256008691. The reversal of 256008688 is 886800652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 150370 + ... + 152062.

Almost surely, 2^256008688 is an apocalyptic number.

It is an amenable number.

256008688 is an abundant number, since it is smaller than the sum of its proper divisors (279214000).

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

256008688 is a wasteful number, since it uses less digits than its factorization.

256008688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 256008688 is about 16000.2714976965. The cubic root of 256008688 is about 634.9676036958.

The spelling of 256008688 in words is "two hundred fifty-six million, eight thousand, six hundred eighty-eight".