22438881572 has 24 divisors (see below), whose sum is σ = 40421449656. Its totient is φ = 10894261248.

The previous prime is 22438881533. The next prime is 22438881637. The reversal of 22438881572 is 27518883422.

It can be written as a sum of positive squares in 4 ways, for example, as 5448801856 + 16990079716 = 73816^2 + 130346^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22438881572.

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, 525023 + ... + 566150.

It is an arithmetic number, because the mean of its divisors is an integer number (1684227069).

Almost surely, 2^22438881572 is an apocalyptic number.

It is an amenable number.

22438881572 is a deficient number, since it is larger than the sum of its proper divisors (17982568084).

22438881572 is a wasteful number, since it uses less digits than its factorization.

22438881572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091327 (or 1091325 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 50.

The spelling of 22438881572 in words is "twenty-two billion, four hundred thirty-eight million, eight hundred eighty-one thousand, five hundred seventy-two".