22439258988 has 24 divisors (see below), whose sum is σ = 54634718208. Its totient is φ = 7154546256.

The previous prime is 22439258939. The next prime is 22439259013. The reversal of 22439258988 is 88985293422.

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, 40650556 + ... + 40651107.

It is an arithmetic number, because the mean of its divisors is an integer number (2276446592).

Almost surely, 2^22439258988 is an apocalyptic number.

It is an amenable number.

22439258988 is an abundant number, since it is smaller than the sum of its proper divisors (32195459220).

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

22439258988 is a wasteful number, since it uses less digits than its factorization.

22439258988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81301693 (or 81301691 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 60.

The spelling of 22439258988 in words is "twenty-two billion, four hundred thirty-nine million, two hundred fifty-eight thousand, nine hundred eighty-eight".