22436572 has 6 divisors (see below), whose sum is σ = 39264008. Its totient is φ = 11218284.

The previous prime is 22436551. The next prime is 22436573. The reversal of 22436572 is 27563422.

It is a super-2 number, since 2×22436572² = 1006799526222368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22436573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2804568 + ... + 2804575.

Almost surely, 2^22436572 is an apocalyptic number.

It is an amenable number.

22436572 is a deficient number, since it is larger than the sum of its proper divisors (16827436).

22436572 is a wasteful number, since it uses less digits than its factorization.

22436572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5609147 (or 5609145 counting only the distinct ones).

The product of its digits is 20160, while the sum is 31.

The square root of 22436572 is about 4736.7258734278. The cubic root of 22436572 is about 282.0452788486.

Adding to 22436572 its reverse (27563422), we get a palindrome (49999994).

The spelling of 22436572 in words is "twenty-two million, four hundred thirty-six thousand, five hundred seventy-two".