22400343232 has 56 divisors (see below), whose sum is σ = 45199157760. Its totient is φ = 11012440320.

The previous prime is 22400343223. The next prime is 22400343253. The reversal of 22400343232 is 23234300422.

It is a super-2 number, since 2×22400343232² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22400343197 and 22400343206.

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, 1715673 + ... + 1728679.

Almost surely, 2^22400343232 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 22400343232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22599578880).

22400343232 is an abundant number, since it is smaller than the sum of its proper divisors (22798814528).

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

22400343232 is a wasteful number, since it uses less digits than its factorization.

22400343232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13469 (or 13459 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 22400343232 its reverse (23234300422), we get a palindrome (45634643654).

The spelling of 22400343232 in words is "twenty-two billion, four hundred million, three hundred forty-three thousand, two hundred thirty-two".