22020572 has 12 divisors (see below), whose sum is σ = 44041200. Its totient is φ = 9437376.

The previous prime is 22020569. The next prime is 22020611. The reversal of 22020572 is 27502022.

22020572 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393197 + ... + 393252.

It is an arithmetic number, because the mean of its divisors is an integer number (3670100).

Almost surely, 2^22020572 is an apocalyptic number.

It is an amenable number.

22020572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22020572 is a wasteful number, since it uses less digits than its factorization.

22020572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786460 (or 786458 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 22020572 is about 4692.6082299719. The cubic root of 22020572 is about 280.2912445733.

Adding to 22020572 its reverse (27502022), we get a palindrome (49522594).

The spelling of 22020572 in words is "twenty-two million, twenty thousand, five hundred seventy-two".