18975232 has 20 divisors (see below), whose sum is σ = 37914426. Its totient is φ = 9487360.

The previous prime is 18975227. The next prime is 18975233. The reversal of 18975232 is 23257981.

It can be written as a sum of positive squares in only one way, i.e., 12503296 + 6471936 = 3536^2 + 2544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18975191 and 18975200.

It is not an unprimeable number, because it can be changed into a prime (18975233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18019 + ... + 19042.

Almost surely, 2^18975232 is an apocalyptic number.

It is an amenable number.

18975232 is a deficient number, since it is larger than the sum of its proper divisors (18939194).

18975232 is an frugal number, since it uses more digits than its factorization.

18975232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37079 (or 37063 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 18975232 is about 4356.0569325940. The cubic root of 18975232 is about 266.7241653790.

The spelling of 18975232 in words is "eighteen million, nine hundred seventy-five thousand, two hundred thirty-two".