22338918972 has 18 divisors (see below), whose sum is σ = 56467823048. Its totient is φ = 7446306312.

The previous prime is 22338918971. The next prime is 22338918983. The reversal of 22338918972 is 27981983322.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22338918971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 310262728 + ... + 310262799.

Almost surely, 2^22338918972 is an apocalyptic number.

It is an amenable number.

22338918972 is an abundant number, since it is smaller than the sum of its proper divisors (34128904076).

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

22338918972 is a wasteful number, since it uses less digits than its factorization.

22338918972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620525537 (or 620525532 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 22338918972 in words is "twenty-two billion, three hundred thirty-eight million, nine hundred eighteen thousand, nine hundred seventy-two".