18125880 has 32 divisors (see below), whose sum is σ = 54378000. Its totient is φ = 4833536.

The previous prime is 18125857. The next prime is 18125897. The reversal of 18125880 is 8852181.

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, 75405 + ... + 75644.

Almost surely, 2^18125880 is an apocalyptic number.

18125880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18125880 is an abundant number, since it is smaller than the sum of its proper divisors (36252120).

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

18125880 is a wasteful number, since it uses less digits than its factorization.

18125880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151063 (or 151059 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 18125880 is about 4257.4499409858. The cubic root of 18125880 is about 262.6836447350.

The spelling of 18125880 in words is "eighteen million, one hundred twenty-five thousand, eight hundred eighty".