18368132 has 24 divisors (see below), whose sum is σ = 33452160. Its totient is φ = 8817120.

The previous prime is 18368131. The next prime is 18368171. The reversal of 18368132 is 23186381.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18368131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10907 + ... + 12477.

It is an arithmetic number, because the mean of its divisors is an integer number (1393840).

Almost surely, 2^18368132 is an apocalyptic number.

It is an amenable number.

18368132 is a deficient number, since it is larger than the sum of its proper divisors (15084028).

18368132 is a wasteful number, since it uses less digits than its factorization.

18368132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1689 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 18368132 is about 4285.8058752118. The cubic root of 18368132 is about 263.8487234028.

The spelling of 18368132 in words is "eighteen million, three hundred sixty-eight thousand, one hundred thirty-two".