18296980 has 24 divisors (see below), whose sum is σ = 41379912. Its totient is φ = 6755712.

The previous prime is 18296977. The next prime is 18297001. The reversal of 18296980 is 8969281.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1008016 + 17288964 = 1004^2 + 4158^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34927 + ... + 35446.

It is an arithmetic number, because the mean of its divisors is an integer number (1724163).

Almost surely, 2^18296980 is an apocalyptic number.

18296980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18296980 is an abundant number, since it is smaller than the sum of its proper divisors (23082932).

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

18296980 is a wasteful number, since it uses less digits than its factorization.

18296980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70395 (or 70393 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 18296980 is about 4277.4969316178. The cubic root of 18296980 is about 263.5075953148.

The spelling of 18296980 in words is "eighteen million, two hundred ninety-six thousand, nine hundred eighty".