18975044 has 12 divisors (see below), whose sum is σ = 36225168. Its totient is φ = 8625000.

The previous prime is 18975037. The next prime is 18975079. The reversal of 18975044 is 44057981.

It is a junction number, because it is equal to n+sod(n) for n = 18974989 and 18975007.

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, 215582 + ... + 215669.

It is an arithmetic number, because the mean of its divisors is an integer number (3018764).

Almost surely, 2^18975044 is an apocalyptic number.

It is an amenable number.

18975044 is a deficient number, since it is larger than the sum of its proper divisors (17250124).

18975044 is a wasteful number, since it uses less digits than its factorization.

18975044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431266 (or 431264 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 18975044 is about 4356.0353533919. The cubic root of 18975044 is about 266.7232845060.

The spelling of 18975044 in words is "eighteen million, nine hundred seventy-five thousand, forty-four".