256624120 has 16 divisors (see below), whose sum is σ = 577404360. Its totient is φ = 102649632.

The previous prime is 256624111. The next prime is 256624177. The reversal of 256624120 is 21426652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3207762 + ... + 3207841.

Almost surely, 2^256624120 is an apocalyptic number.

256624120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256624120 is an abundant number, since it is smaller than the sum of its proper divisors (320780240).

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

256624120 is a wasteful number, since it uses less digits than its factorization.

256624120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415614 (or 6415610 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 256624120 is about 16019.4918770852. The cubic root of 256624120 is about 635.4760065744.

The spelling of 256624120 in words is "two hundred fifty-six million, six hundred twenty-four thousand, one hundred twenty".