256124408 has 32 divisors (see below), whose sum is σ = 515062800. Its totient is φ = 119029248.

The previous prime is 256124359. The next prime is 256124411. The reversal of 256124408 is 804421652.

256124408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7841 + ... + 23952.

Almost surely, 2^256124408 is an apocalyptic number.

It is an amenable number.

256124408 is an abundant number, since it is smaller than the sum of its proper divisors (258938392).

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

256124408 is a wasteful number, since it uses less digits than its factorization.

256124408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31871 (or 31867 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 256124408 is about 16003.8872777835. The cubic root of 256124408 is about 635.0632611040.

The spelling of 256124408 in words is "two hundred fifty-six million, one hundred twenty-four thousand, four hundred eight".