1856472256 has 28 divisors (see below), whose sum is σ = 3718380168. Its totient is φ = 919557632.

The previous prime is 1856472253. The next prime is 1856472257. The reversal of 1856472256 is 6522746581.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1856472253) 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, 128701 + ... + 142396.

Almost surely, 2^1856472256 is an apocalyptic number.

1856472256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1856472256 is an abundant number, since it is smaller than the sum of its proper divisors (1861907912).

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

1856472256 is a wasteful number, since it uses less digits than its factorization.

1856472256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271216 (or 271206 counting only the distinct ones).

The product of its digits is 806400, while the sum is 46.

The square root of 1856472256 is about 43086.7990920653. The cubic root of 1856472256 is about 1229.0309541975.

The spelling of 1856472256 in words is "one billion, eight hundred fifty-six million, four hundred seventy-two thousand, two hundred fifty-six".