22534200444 has 72 divisors (see below), whose sum is σ = 60459468160. Its totient is φ = 6399124704.

The previous prime is 22534200371. The next prime is 22534200487. The reversal of 22534200444 is 44400243522.

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 23 ways as a sum of consecutive naturals, for example, 2337867 + ... + 2347485.

Almost surely, 2^22534200444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22534200444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30229734080).

22534200444 is an abundant number, since it is smaller than the sum of its proper divisors (37925267716).

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

22534200444 is a wasteful number, since it uses less digits than its factorization.

22534200444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9967 (or 9798 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 22534200444 its reverse (44400243522), we get a palindrome (66934443966).

The spelling of 22534200444 in words is "twenty-two billion, five hundred thirty-four million, two hundred thousand, four hundred forty-four".