18108832 has 36 divisors (see below), whose sum is σ = 41476050. Its totient is φ = 7760256.

The previous prime is 18108829. The next prime is 18108841. The reversal of 18108832 is 23880181.

It can be written as a sum of positive squares in only one way, i.e., 10732176 + 7376656 = 3276^2 + 2716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18108794 and 18108803.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4207 + ... + 7342.

Almost surely, 2^18108832 is an apocalyptic number.

It is an amenable number.

18108832 is an abundant number, since it is smaller than the sum of its proper divisors (23367218).

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

18108832 is a wasteful number, since it uses less digits than its factorization.

18108832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11573 (or 11558 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 18108832 is about 4255.4473325374. The cubic root of 18108832 is about 262.6012646338.

The spelling of 18108832 in words is "eighteen million, one hundred eight thousand, eight hundred thirty-two".