18798768 has 30 divisors (see below), whose sum is σ = 52610844. Its totient is φ = 6266208.

The previous prime is 18798763. The next prime is 18798781. The reversal of 18798768 is 86789781.

It is not an unprimeable number, because it can be changed into a prime (18798763) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65130 + ... + 65417.

Almost surely, 2^18798768 is an apocalyptic number.

18798768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18798768 is an abundant number, since it is smaller than the sum of its proper divisors (33812076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18798768 is a wasteful number, since it uses less digits than its factorization.

18798768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130561 (or 130552 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 54.

The square root of 18798768 is about 4335.7546056021. The cubic root of 18798768 is about 265.8947705953.

The spelling of 18798768 in words is "eighteen million, seven hundred ninety-eight thousand, seven hundred sixty-eight".