18408364 has 12 divisors (see below), whose sum is σ = 34692784. Its totient is φ = 8496144.

The previous prime is 18408347. The next prime is 18408371. The reversal of 18408364 is 46380481.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176952 + ... + 177055.

Almost surely, 2^18408364 is an apocalyptic number.

It is an amenable number.

18408364 is a deficient number, since it is larger than the sum of its proper divisors (16284420).

18408364 is a wasteful number, since it uses less digits than its factorization.

18408364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354024 (or 354022 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 18408364 is about 4290.4969409149. The cubic root of 18408364 is about 264.0412202242.

The spelling of 18408364 in words is "eighteen million, four hundred eight thousand, three hundred sixty-four".