18529984 has 28 divisors (see below), whose sum is σ = 40114728. Its totient is φ = 8422400.

The previous prime is 18529981. The next prime is 18530011. The reversal of 18529984 is 48992581.

It is not an unprimeable number, because it can be changed into a prime (18529981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12457 + ... + 13864.

Almost surely, 2^18529984 is an apocalyptic number.

It is an amenable number.

18529984 is an abundant number, since it is smaller than the sum of its proper divisors (21584744).

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

18529984 is a wasteful number, since it uses less digits than its factorization.

18529984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26344 (or 26334 counting only the distinct ones).

The product of its digits is 207360, while the sum is 46.

The square root of 18529984 is about 4304.6467915498. The cubic root of 18529984 is about 264.6214316822.

The spelling of 18529984 in words is "eighteen million, five hundred twenty-nine thousand, nine hundred eighty-four".