256072472 has 16 divisors (see below), whose sum is σ = 483592200. Its totient is φ = 127114560.

The previous prime is 256072469. The next prime is 256072477. The reversal of 256072472 is 274270652.

256072472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256072472² = 131146221832381568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256072477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114029 + ... + 116252.

Almost surely, 2^256072472 is an apocalyptic number.

It is an amenable number.

256072472 is a deficient number, since it is larger than the sum of its proper divisors (227519728).

256072472 is a wasteful number, since it uses less digits than its factorization.

256072472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230426 (or 230422 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 256072472 is about 16002.2645897385. The cubic root of 256072472 is about 635.0203329096.

The spelling of 256072472 in words is "two hundred fifty-six million, seventy-two thousand, four hundred seventy-two".