22345572 has 24 divisors (see below), whose sum is σ = 52919776. Its totient is φ = 7337088.

The previous prime is 22345571. The next prime is 22345579. The reversal of 22345572 is 27554322.

It is not an unprimeable number, because it can be changed into a prime (22345571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13093 + ... + 14700.

Almost surely, 2^22345572 is an apocalyptic number.

It is an amenable number.

22345572 is an abundant number, since it is smaller than the sum of its proper divisors (30574204).

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

22345572 is a wasteful number, since it uses less digits than its factorization.

22345572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27867 (or 27865 counting only the distinct ones).

The product of its digits is 16800, while the sum is 30.

The square root of 22345572 is about 4727.1103223851. The cubic root of 22345572 is about 281.6634484108.

Adding to 22345572 its reverse (27554322), we get a palindrome (49899894).

The spelling of 22345572 in words is "twenty-two million, three hundred forty-five thousand, five hundred seventy-two".