18099932 has 12 divisors (see below), whose sum is σ = 33342120. Its totient is φ = 8573616.

The previous prime is 18099929. The next prime is 18099941. The reversal of 18099932 is 23999081.

It is a self number, because there is not a number n which added to its sum of digits gives 18099932.

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, 119003 + ... + 119154.

It is an arithmetic number, because the mean of its divisors is an integer number (2778510).

Almost surely, 2^18099932 is an apocalyptic number.

It is an amenable number.

18099932 is a deficient number, since it is larger than the sum of its proper divisors (15242188).

18099932 is a wasteful number, since it uses less digits than its factorization.

18099932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238180 (or 238178 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 18099932 is about 4254.4014855206. The cubic root of 18099932 is about 262.5582371166.

The spelling of 18099932 in words is "eighteen million, ninety-nine thousand, nine hundred thirty-two".