18809120 has 48 divisors (see below), whose sum is σ = 48480768. Its totient is φ = 6839040.

The previous prime is 18809113. The next prime is 18809159. The reversal of 18809120 is 2190881.

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, 3584 + ... + 7103.

It is an arithmetic number, because the mean of its divisors is an integer number (1010016).

Almost surely, 2^18809120 is an apocalyptic number.

18809120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18809120 is an abundant number, since it is smaller than the sum of its proper divisors (29671648).

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

18809120 is a wasteful number, since it uses less digits than its factorization.

18809120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10713 (or 10705 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 18809120 is about 4336.9482357990. The cubic root of 18809120 is about 265.9435687855.

The spelling of 18809120 in words is "eighteen million, eight hundred nine thousand, one hundred twenty".