18680120 has 16 divisors (see below), whose sum is σ = 42030360. Its totient is φ = 7472032.

The previous prime is 18680113. The next prime is 18680141. The reversal of 18680120 is 2108681.

It is a self number, because there is not a number n which added to its sum of digits gives 18680120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233462 + ... + 233541.

Almost surely, 2^18680120 is an apocalyptic number.

18680120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18680120 is an abundant number, since it is smaller than the sum of its proper divisors (23350240).

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

18680120 is a wasteful number, since it uses less digits than its factorization.

18680120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467014 (or 467010 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 18680120 is about 4322.0504393170. The cubic root of 18680120 is about 265.3341932976.

The spelling of 18680120 in words is "eighteen million, six hundred eighty thousand, one hundred twenty".