256023474 has 16 divisors (see below), whose sum is σ = 585196608. Its totient is φ = 73149552.

The previous prime is 256023473. The next prime is 256023497. The reversal of 256023474 is 474320652.

It is not an unprimeable number, because it can be changed into a prime (256023473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3047857 + ... + 3047940.

It is an arithmetic number, because the mean of its divisors is an integer number (36574788).

Almost surely, 2^256023474 is an apocalyptic number.

256023474 is an abundant number, since it is smaller than the sum of its proper divisors (329173134).

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

256023474 is a wasteful number, since it uses less digits than its factorization.

256023474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6095809.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 256023474 is about 16000.7335456847. The cubic root of 256023474 is about 634.9798278255.

The spelling of 256023474 in words is "two hundred fifty-six million, twenty-three thousand, four hundred seventy-four".