18725912 has 8 divisors (see below), whose sum is σ = 35111100. Its totient is φ = 9362952.

The previous prime is 18725899. The next prime is 18725921. The reversal of 18725912 is 21952781.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170362 + ... + 1170377.

Almost surely, 2^18725912 is an apocalyptic number.

It is an amenable number.

18725912 is a deficient number, since it is larger than the sum of its proper divisors (16385188).

18725912 is a wasteful number, since it uses less digits than its factorization.

18725912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340745 (or 2340741 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 18725912 is about 4327.3446823659. The cubic root of 18725912 is about 265.5508276778.

The spelling of 18725912 in words is "eighteen million, seven hundred twenty-five thousand, nine hundred twelve".