22572306 has 12 divisors (see below), whose sum is σ = 48906702. Its totient is φ = 7524096.

The previous prime is 22572299. The next prime is 22572307. The reversal of 22572306 is 60327522.

It can be written as a sum of positive squares in only one way, i.e., 16769025 + 5803281 = 4095^2 + 2409^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22572306.

It is not an unprimeable number, because it can be changed into a prime (22572307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626991 + ... + 627026.

Almost surely, 2^22572306 is an apocalyptic number.

22572306 is an abundant number, since it is smaller than the sum of its proper divisors (26334396).

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

22572306 is a wasteful number, since it uses less digits than its factorization.

22572306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254025 (or 1254022 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 22572306 is about 4751.0320983971. The cubic root of 22572306 is about 282.6128966366.

Adding to 22572306 its reverse (60327522), we get a palindrome (82899828).

The spelling of 22572306 in words is "twenty-two million, five hundred seventy-two thousand, three hundred six".