256203074 has 16 divisors (see below), whose sum is σ = 392143680. Its totient is φ = 125511120.

The previous prime is 256203071. The next prime is 256203089. The reversal of 256203074 is 470302652.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (256203071) by changing a digit.

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, 17612 + ... + 28680.

It is an arithmetic number, because the mean of its divisors is an integer number (24508980).

Almost surely, 2^256203074 is an apocalyptic number.

256203074 is a deficient number, since it is larger than the sum of its proper divisors (135940606).

256203074 is a wasteful number, since it uses less digits than its factorization.

256203074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11305.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 256203074 is about 16006.3448044830. The cubic root of 256203074 is about 635.1282721834.

The spelling of 256203074 in words is "two hundred fifty-six million, two hundred three thousand, seventy-four".