18460456 has 24 divisors (see below), whose sum is σ = 40265370. Its totient is φ = 7911456.

The previous prime is 18460439. The next prime is 18460489. The reversal of 18460456 is 65406481.

It can be written as a sum of positive squares in only one way, i.e., 9400356 + 9060100 = 3066^2 + 3010^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23155 + ... + 23938.

Almost surely, 2^18460456 is an apocalyptic number.

It is an amenable number.

18460456 is an abundant number, since it is smaller than the sum of its proper divisors (21804914).

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

18460456 is a wasteful number, since it uses less digits than its factorization.

18460456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47113 (or 47102 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 18460456 is about 4296.5632777838. The cubic root of 18460456 is about 264.2900469984.

The spelling of 18460456 in words is "eighteen million, four hundred sixty thousand, four hundred fifty-six".