22400981952 has 56 divisors (see below), whose sum is σ = 59576457936. Its totient is φ = 7428292608.

The previous prime is 22400981947. The next prime is 22400981959. The reversal of 22400981952 is 25918900422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400981959) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 265203 + ... + 339314.

Almost surely, 2^22400981952 is an apocalyptic number.

It is an amenable number.

22400981952 is an abundant number, since it is smaller than the sum of its proper divisors (37175475984).

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

22400981952 is a wasteful number, since it uses less digits than its factorization.

22400981952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604725 (or 604715 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 22400981952 in words is "twenty-two billion, four hundred million, nine hundred eighty-one thousand, nine hundred fifty-two".