22489572 has 48 divisors (see below), whose sum is σ = 63504000. Its totient is φ = 6047232.

The previous prime is 22489553. The next prime is 22489573. The reversal of 22489572 is 27598422.

It is a self number, because there is not a number n which added to its sum of digits gives 22489572.

It is not an unprimeable number, because it can be changed into a prime (22489573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6447 + ... + 9302.

It is an arithmetic number, because the mean of its divisors is an integer number (1323000).

Almost surely, 2^22489572 is an apocalyptic number.

It is an amenable number.

22489572 is an abundant number, since it is smaller than the sum of its proper divisors (41014428).

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

22489572 is a wasteful number, since it uses less digits than its factorization.

22489572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780 (or 15778 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 22489572 is about 4742.3171551468. The cubic root of 22489572 is about 282.2671880416.

The spelling of 22489572 in words is "twenty-two million, four hundred eighty-nine thousand, five hundred seventy-two".