18466372 has 12 divisors (see below), whose sum is σ = 32759356. Its totient is φ = 9106560.

The previous prime is 18466363. The next prime is 18466373. The reversal of 18466372 is 27366481.

It can be written as a sum of positive squares in 2 ways, for example, as 7929856 + 10536516 = 2816^2 + 3246^2 .

It is not an unprimeable number, because it can be changed into a prime (18466373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31329 + ... + 31912.

Almost surely, 2^18466372 is an apocalyptic number.

It is an amenable number.

18466372 is a deficient number, since it is larger than the sum of its proper divisors (14292984).

18466372 is a wasteful number, since it uses less digits than its factorization.

18466372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63318 (or 63316 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 18466372 is about 4297.2516798531. The cubic root of 18466372 is about 264.3182762203.

The spelling of 18466372 in words is "eighteen million, four hundred sixty-six thousand, three hundred seventy-two".