22043442232 has 24 divisors (see below), whose sum is σ = 48079447560. Its totient is φ = 9447189360.

The previous prime is 22043442227. The next prime is 22043442247. The reversal of 22043442232 is 23224434022.

It is a happy number.

It is a super-4 number, since 4×22043442232⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 22043442232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28116244 + ... + 28117027.

It is an arithmetic number, because the mean of its divisors is an integer number (2003310315).

Almost surely, 2^22043442232 is an apocalyptic number.

It is an amenable number.

22043442232 is an abundant number, since it is smaller than the sum of its proper divisors (26036005328).

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

22043442232 is a wasteful number, since it uses less digits than its factorization.

22043442232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56233291 (or 56233280 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 22043442232 its reverse (23224434022), we get a palindrome (45267876254).

The spelling of 22043442232 in words is "twenty-two billion, forty-three million, four hundred forty-two thousand, two hundred thirty-two".