18372472 has 32 divisors (see below), whose sum is σ = 35349120. Its totient is φ = 8949600.

The previous prime is 18372463. The next prime is 18372511. The reversal of 18372472 is 27427381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80823 + ... + 81049.

It is an arithmetic number, because the mean of its divisors is an integer number (1104660).

Almost surely, 2^18372472 is an apocalyptic number.

It is an amenable number.

18372472 is a deficient number, since it is larger than the sum of its proper divisors (16976648).

18372472 is a wasteful number, since it uses less digits than its factorization.

18372472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 447 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 18372472 is about 4286.3121678198. The cubic root of 18372472 is about 263.8695023854.

The spelling of 18372472 in words is "eighteen million, three hundred seventy-two thousand, four hundred seventy-two".