18514864 has 10 divisors (see below), whose sum is σ = 35872580. Its totient is φ = 9257424.

The previous prime is 18514841. The next prime is 18514891. The reversal of 18514864 is 46841581.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578574 + ... + 578605.

It is an arithmetic number, because the mean of its divisors is an integer number (3587258).

Almost surely, 2^18514864 is an apocalyptic number.

It is an amenable number.

18514864 is a deficient number, since it is larger than the sum of its proper divisors (17357716).

18514864 is a wasteful number, since it uses less digits than its factorization.

18514864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157187 (or 1157181 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 18514864 is about 4302.8901914876. The cubic root of 18514864 is about 264.5494372901.

The spelling of 18514864 in words is "eighteen million, five hundred fourteen thousand, eight hundred sixty-four".