18132492 has 24 divisors (see below), whose sum is σ = 48353536. Its totient is φ = 5180688.

The previous prime is 18132481. The next prime is 18132509. The reversal of 18132492 is 29423181.

It is a super-2 number, since 2×18132492² = 657574532260128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107848 + ... + 108015.

Almost surely, 2^18132492 is an apocalyptic number.

18132492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18132492 is an abundant number, since it is smaller than the sum of its proper divisors (30221044).

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

18132492 is a wasteful number, since it uses less digits than its factorization.

18132492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215877 (or 215875 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 18132492 is about 4258.2263913512. The cubic root of 18132492 is about 262.7155816324.

The spelling of 18132492 in words is "eighteen million, one hundred thirty-two thousand, four hundred ninety-two".