18573712 has 20 divisors (see below), whose sum is σ = 37148416. Its totient is φ = 8987040.

The previous prime is 18573703. The next prime is 18573739. The reversal of 18573712 is 21737581.

18573712 is an admirable number.

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, 18228 + ... + 19219.

Almost surely, 2^18573712 is an apocalyptic number.

It is an amenable number.

18573712 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18573712 is a wasteful number, since it uses less digits than its factorization.

18573712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37486 (or 37480 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 18573712 is about 4309.7229609338. The cubic root of 18573712 is about 264.8294238684.

The spelling of 18573712 in words is "eighteen million, five hundred seventy-three thousand, seven hundred twelve".