18445132 has 24 divisors (see below), whose sum is σ = 32944464. Its totient is φ = 9034752.

The previous prime is 18445127. The next prime is 18445139. The reversal of 18445132 is 23154481.

It is a self number, because there is not a number n which added to its sum of digits gives 18445132.

It is not an unprimeable number, because it can be changed into a prime (18445139) 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, 52983 + ... + 53329.

It is an arithmetic number, because the mean of its divisors is an integer number (1372686).

Almost surely, 2^18445132 is an apocalyptic number.

It is an amenable number.

18445132 is a deficient number, since it is larger than the sum of its proper divisors (14499332).

18445132 is a wasteful number, since it uses less digits than its factorization.

18445132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 583 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 18445132 is about 4294.7796218200. The cubic root of 18445132 is about 264.2168978154.

The spelling of 18445132 in words is "eighteen million, four hundred forty-five thousand, one hundred thirty-two".