18326372 has 12 divisors (see below), whose sum is σ = 32105136. Its totient is φ = 9153480.

The previous prime is 18326351. The next prime is 18326387. The reversal of 18326372 is 27362381.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 3347 + ... + 6917.

It is an arithmetic number, because the mean of its divisors is an integer number (2675428).

Almost surely, 2^18326372 is an apocalyptic number.

It is an amenable number.

18326372 is a deficient number, since it is larger than the sum of its proper divisors (13778764).

18326372 is a wasteful number, since it uses less digits than its factorization.

18326372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858 (or 4856 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 18326372 is about 4280.9312071090. The cubic root of 18326372 is about 263.6486180734.

The spelling of 18326372 in words is "eighteen million, three hundred twenty-six thousand, three hundred seventy-two".