18112732 has 18 divisors (see below), whose sum is σ = 34841744. Its totient is φ = 8232840.

The previous prime is 18112727. The next prime is 18112741. The reversal of 18112732 is 23721181.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18112697 and 18112706.

It is a congruent number.

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, 18228 + ... + 19195.

Almost surely, 2^18112732 is an apocalyptic number.

It is an amenable number.

18112732 is a deficient number, since it is larger than the sum of its proper divisors (16729012).

18112732 is a wasteful number, since it uses less digits than its factorization.

18112732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37449 (or 37436 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 18112732 is about 4255.9055440646. The cubic root of 18112732 is about 262.6201149462.

The spelling of 18112732 in words is "eighteen million, one hundred twelve thousand, seven hundred thirty-two".