22820684920 has 64 divisors (see below), whose sum is σ = 58962556800. Its totient is φ = 7861668480.

The previous prime is 22820684899. The next prime is 22820684947. The reversal of 22820684920 is 2948602822.

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, 1356514 + ... + 1373233.

It is an arithmetic number, because the mean of its divisors is an integer number (921289950).

Almost surely, 2^22820684920 is an apocalyptic number.

22820684920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22820684920 is an abundant number, since it is smaller than the sum of its proper divisors (36141871880).

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

22820684920 is a wasteful number, since it uses less digits than its factorization.

22820684920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729788 (or 2729784 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 22820684920 in words is "twenty-two billion, eight hundred twenty million, six hundred eighty-four thousand, nine hundred twenty".