18809124 has 36 divisors (see below), whose sum is σ = 45894576. Its totient is φ = 5995088.

The previous prime is 18809113. The next prime is 18809159. The reversal of 18809124 is 42190881.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4867 + ... + 7829.

Almost surely, 2^18809124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18809124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22947288).

18809124 is an abundant number, since it is smaller than the sum of its proper divisors (27085452).

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

18809124 is a wasteful number, since it uses less digits than its factorization.

18809124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016 (or 2991 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 18809124 is about 4336.9486969527. The cubic root of 18809124 is about 265.9435876376.

The spelling of 18809124 in words is "eighteen million, eight hundred nine thousand, one hundred twenty-four".