18396132 has 24 divisors (see below), whose sum is σ = 43083936. Its totient is φ = 6109248.

The previous prime is 18396127. The next prime is 18396143. The reversal of 18396132 is 23169381.

It is a super-2 number, since 2×18396132² = 676835345122848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18396093 and 18396102.

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, 688 + ... + 6104.

It is an arithmetic number, because the mean of its divisors is an integer number (1795164).

Almost surely, 2^18396132 is an apocalyptic number.

18396132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18396132 is an abundant number, since it is smaller than the sum of its proper divisors (24687804).

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

18396132 is a wasteful number, since it uses less digits than its factorization.

18396132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707 (or 5705 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 18396132 is about 4289.0712281332. The cubic root of 18396132 is about 263.9827238465.

It can be divided in two parts, 18396 and 132, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 18396132 in words is "eighteen million, three hundred ninety-six thousand, one hundred thirty-two".