22635572 has 6 divisors (see below), whose sum is σ = 39612258. Its totient is φ = 11317784.

The previous prime is 22635563. The next prime is 22635577. The reversal of 22635572 is 27553622.

It can be written as a sum of positive squares in only one way, i.e., 18284176 + 4351396 = 4276^2 + 2086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22635577) 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 as a sum of consecutive naturals, namely, 2829443 + ... + 2829450.

It is an arithmetic number, because the mean of its divisors is an integer number (6602043).

Almost surely, 2^22635572 is an apocalyptic number.

It is an amenable number.

22635572 is a deficient number, since it is larger than the sum of its proper divisors (16976686).

22635572 is a wasteful number, since it uses less digits than its factorization.

22635572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658897 (or 5658895 counting only the distinct ones).

The product of its digits is 25200, while the sum is 32.

The square root of 22635572 is about 4757.6855717880. The cubic root of 22635572 is about 282.8766875685.

The spelling of 22635572 in words is "twenty-two million, six hundred thirty-five thousand, five hundred seventy-two".