18712048 has 20 divisors (see below), whose sum is σ = 36420040. Its totient is φ = 9313344.

The previous prime is 18712039. The next prime is 18712051. The reversal of 18712048 is 84021781.

It is a congruent number.

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, 1111 + ... + 6217.

It is an arithmetic number, because the mean of its divisors is an integer number (1821002).

Almost surely, 2^18712048 is an apocalyptic number.

It is an amenable number.

18712048 is a deficient number, since it is larger than the sum of its proper divisors (17707992).

18712048 is a wasteful number, since it uses less digits than its factorization.

18712048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 18712048 is about 4325.7424796213. The cubic root of 18712048 is about 265.4852766983.

The spelling of 18712048 in words is "eighteen million, seven hundred twelve thousand, forty-eight".