256475038 has 16 divisors (see below), whose sum is σ = 392634000. Its totient is φ = 125623872.

The previous prime is 256474979. The next prime is 256475069. The reversal of 256475038 is 830574652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12793 + ... + 26011.

It is an arithmetic number, because the mean of its divisors is an integer number (24539625).

Almost surely, 2^256475038 is an apocalyptic number.

256475038 is a deficient number, since it is larger than the sum of its proper divisors (136158962).

256475038 is a wasteful number, since it uses less digits than its factorization.

256475038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13419.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 256475038 is about 16014.8380572518. The cubic root of 256475038 is about 635.3529259309.

The spelling of 256475038 in words is "two hundred fifty-six million, four hundred seventy-five thousand, thirty-eight".