22918304472 has 32 divisors (see below), whose sum is σ = 65480870400. Its totient is φ = 6548086944.

The previous prime is 22918304443. The next prime is 22918304509. The reversal of 22918304472 is 27440381922.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 68209072 + ... + 68209407.

It is an arithmetic number, because the mean of its divisors is an integer number (2046277200).

Almost surely, 2^22918304472 is an apocalyptic number.

It is an amenable number.

22918304472 is an abundant number, since it is smaller than the sum of its proper divisors (42562565928).

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

22918304472 is a wasteful number, since it uses less digits than its factorization.

22918304472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136418495 (or 136418491 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 22918304472 in words is "twenty-two billion, nine hundred eighteen million, three hundred four thousand, four hundred seventy-two".