18232132 has 12 divisors (see below), whose sum is σ = 32040316. Its totient is φ = 9077760.

The previous prime is 18232127. The next prime is 18232141. The reversal of 18232132 is 23123281.

It can be written as a sum of positive squares in 2 ways, for example, as 16112196 + 2119936 = 4014^2 + 1456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8493 + ... + 10420.

It is a self-describing number.

Almost surely, 2^18232132 is an apocalyptic number.

It is an amenable number.

18232132 is a deficient number, since it is larger than the sum of its proper divisors (13808184).

18232132 is a wasteful number, since it uses less digits than its factorization.

18232132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19158 (or 19156 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 18232132 is about 4269.9100693106. The cubic root of 18232132 is about 263.1959196899.

The spelling of 18232132 in words is "eighteen million, two hundred thirty-two thousand, one hundred thirty-two".