18424684 has 12 divisors (see below), whose sum is σ = 32772208. Its totient is φ = 9061200.

The previous prime is 18424667. The next prime is 18424709. The reversal of 18424684 is 48642481.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37512 + ... + 37999.

Almost surely, 2^18424684 is an apocalyptic number.

It is an amenable number.

18424684 is a deficient number, since it is larger than the sum of its proper divisors (14347524).

18424684 is a wasteful number, since it uses less digits than its factorization.

18424684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75576 (or 75574 counting only the distinct ones).

The product of its digits is 49152, while the sum is 37.

The square root of 18424684 is about 4292.3983971668. The cubic root of 18424684 is about 264.1192260682.

The spelling of 18424684 in words is "eighteen million, four hundred twenty-four thousand, six hundred eighty-four".