22579993940 has 48 divisors (see below), whose sum is σ = 54201595392. Its totient is φ = 7740339456.

The previous prime is 22579993939. The next prime is 22579993951. The reversal of 22579993940 is 4939997522.

It is a super-2 number, since 2×22579993940² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22579993940.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071344 + ... + 1092216.

It is an arithmetic number, because the mean of its divisors is an integer number (1129199904).

Almost surely, 2^22579993940 is an apocalyptic number.

22579993940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22579993940 is an abundant number, since it is smaller than the sum of its proper divisors (31621601452).

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

22579993940 is a wasteful number, since it uses less digits than its factorization.

22579993940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28616 (or 28614 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 59.

The spelling of 22579993940 in words is "twenty-two billion, five hundred seventy-nine million, nine hundred ninety-three thousand, nine hundred forty".