22685224 has 8 divisors (see below), whose sum is σ = 42534810. Its totient is φ = 11342608.

The previous prime is 22685213. The next prime is 22685227. The reversal of 22685224 is 42258622.

It can be written as a sum of positive squares in only one way, i.e., 18645124 + 4040100 = 4318^2 + 2010^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22685227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1417819 + ... + 1417834.

Almost surely, 2^22685224 is an apocalyptic number.

It is an amenable number.

22685224 is a deficient number, since it is larger than the sum of its proper divisors (19849586).

22685224 is a wasteful number, since it uses less digits than its factorization.

22685224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835659 (or 2835655 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 22685224 is about 4762.9007967834. The cubic root of 22685224 is about 283.0833701606.

The spelling of 22685224 in words is "twenty-two million, six hundred eighty-five thousand, two hundred twenty-four".