22618707940 has 24 divisors (see below), whose sum is σ = 49031523072. Its totient is φ = 8755628640.

The previous prime is 22618707907. The next prime is 22618707953. The reversal of 22618707940 is 4970781622.

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, 18240274 + ... + 18241513.

It is an arithmetic number, because the mean of its divisors is an integer number (2042980128).

Almost surely, 2^22618707940 is an apocalyptic number.

22618707940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22618707940 is an abundant number, since it is smaller than the sum of its proper divisors (26412815132).

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

22618707940 is a wasteful number, since it uses less digits than its factorization.

22618707940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36481827 (or 36481825 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 22618707940 in words is "twenty-two billion, six hundred eighteen million, seven hundred seven thousand, nine hundred forty".