18748568 has 8 divisors (see below), whose sum is σ = 35153580. Its totient is φ = 9374280.

The previous prime is 18748567. The next prime is 18748577. The reversal of 18748568 is 86584781.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18748567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1171778 + ... + 1171793.

Almost surely, 2^18748568 is an apocalyptic number.

It is an amenable number.

18748568 is a deficient number, since it is larger than the sum of its proper divisors (16405012).

18748568 is a wasteful number, since it uses less digits than its factorization.

18748568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343577 (or 2343573 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 18748568 is about 4329.9616626478. The cubic root of 18748568 is about 265.6578788920.

The spelling of 18748568 in words is "eighteen million, seven hundred forty-eight thousand, five hundred sixty-eight".