22436872 has 48 divisors (see below), whose sum is σ = 47114460. Its totient is φ = 9980928.

The previous prime is 22436833. The next prime is 22436873. The reversal of 22436872 is 27863422.

It can be written as a sum of positive squares in 2 ways, for example, as 19766916 + 2669956 = 4446^2 + 1634^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (22436873) 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, 48868 + ... + 49324.

Almost surely, 2^22436872 is an apocalyptic number.

It is an amenable number.

22436872 is an abundant number, since it is smaller than the sum of its proper divisors (24677588).

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

22436872 is a wasteful number, since it uses less digits than its factorization.

22436872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 495 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 22436872 is about 4736.7575407656. The cubic root of 22436872 is about 282.0465359213.

The spelling of 22436872 in words is "twenty-two million, four hundred thirty-six thousand, eight hundred seventy-two".