18922120 has 32 divisors (see below), whose sum is σ = 48657600. Its totient is φ = 6487488.

The previous prime is 18922109. The next prime is 18922129. The reversal of 18922120 is 2122981.

It is not an unprimeable number, because it can be changed into a prime (18922129) 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, 33510 + ... + 34069.

It is an arithmetic number, because the mean of its divisors is an integer number (1520550).

Almost surely, 2^18922120 is an apocalyptic number.

18922120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18922120 is an abundant number, since it is smaller than the sum of its proper divisors (29735480).

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

18922120 is a wasteful number, since it uses less digits than its factorization.

18922120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67597 (or 67593 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 18922120 is about 4349.9563216198. The cubic root of 18922120 is about 266.4750776619.

The spelling of 18922120 in words is "eighteen million, nine hundred twenty-two thousand, one hundred twenty".