18839024020 has 48 divisors (see below), whose sum is σ = 41762427840. Its totient is φ = 7118724096.

The previous prime is 18839023997. The next prime is 18839024041. The reversal of 18839024020 is 2042093881.

It is a super-2 number, since 2×18839024020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63919 + ... + 204361.

It is an arithmetic number, because the mean of its divisors is an integer number (870050580).

Almost surely, 2^18839024020 is an apocalyptic number.

18839024020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18839024020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20881213920).

18839024020 is an abundant number, since it is smaller than the sum of its proper divisors (22923403820).

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

18839024020 is a wasteful number, since it uses less digits than its factorization.

18839024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140824 (or 140822 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 18839024020 in words is "eighteen billion, eight hundred thirty-nine million, twenty-four thousand, twenty".