22532331432 has 128 divisors (see below), whose sum is σ = 63547545600. Its totient is φ = 6605820672.

The previous prime is 22532331421. The next prime is 22532331443. The reversal of 22532331432 is 23413323522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22532331421) and next prime (22532331443).

It is a super-2 number, since 2×22532331432² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22532331432.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1881319 + ... + 1893257.

It is an arithmetic number, because the mean of its divisors is an integer number (496465200).

Almost surely, 2^22532331432 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 22532331432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31773772800).

22532331432 is an abundant number, since it is smaller than the sum of its proper divisors (41015214168).

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

22532331432 is a wasteful number, since it uses less digits than its factorization.

22532331432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247 (or 12243 counting only the distinct ones).

The product of its digits is 25920, while the sum is 30.

Adding to 22532331432 its reverse (23413323522), we get a palindrome (45945654954).

The spelling of 22532331432 in words is "twenty-two billion, five hundred thirty-two million, three hundred thirty-one thousand, four hundred thirty-two".