18868568 has 8 divisors (see below), whose sum is σ = 35378580. Its totient is φ = 9434280.

The previous prime is 18868559. The next prime is 18868601. The reversal of 18868568 is 86586881.

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, 1179278 + ... + 1179293.

Almost surely, 2^18868568 is an apocalyptic number.

It is an amenable number.

18868568 is a deficient number, since it is larger than the sum of its proper divisors (16510012).

18868568 is a wasteful number, since it uses less digits than its factorization.

18868568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358577 (or 2358573 counting only the distinct ones).

The product of its digits is 737280, while the sum is 50.

The square root of 18868568 is about 4343.7964961540. The cubic root of 18868568 is about 266.2234540455.

The spelling of 18868568 in words is "eighteen million, eight hundred sixty-eight thousand, five hundred sixty-eight".