18079768 has 32 divisors (see below), whose sum is σ = 38880000. Its totient is φ = 7720992.

The previous prime is 18079757. The next prime is 18079769. The reversal of 18079768 is 86797081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18079769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27621 + ... + 28267.

It is an arithmetic number, because the mean of its divisors is an integer number (1215000).

Almost surely, 2^18079768 is an apocalyptic number.

It is an amenable number.

18079768 is an abundant number, since it is smaller than the sum of its proper divisors (20800232).

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

18079768 is a wasteful number, since it uses less digits than its factorization.

18079768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 18079768 is about 4252.0310441012. The cubic root of 18079768 is about 262.4607009951.

The spelling of 18079768 in words is "eighteen million, seventy-nine thousand, seven hundred sixty-eight".