22431040443 has 12 divisors (see below), whose sum is σ = 37029019248. Its totient is φ = 12817737360.

The previous prime is 22431040399. The next prime is 22431040447. The reversal of 22431040443 is 34404013422.

It is a happy number.

22431040443 is a `hidden beast` number, since 2 + 243 + 10 + 404 + 4 + 3 = 666.

It is not a de Polignac number, because 22431040443 - 2²¹ = 22428943291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22431040447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178024068 + ... + 178024193.

It is an arithmetic number, because the mean of its divisors is an integer number (3085751604).

Almost surely, 2^22431040443 is an apocalyptic number.

22431040443 is a deficient number, since it is larger than the sum of its proper divisors (14597978805).

22431040443 is a wasteful number, since it uses less digits than its factorization.

22431040443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356048274 (or 356048271 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 22431040443 its reverse (34404013422), we get a palindrome (56835053865).

The spelling of 22431040443 in words is "twenty-two billion, four hundred thirty-one million, forty thousand, four hundred forty-three".