22523332 has 12 divisors (see below), whose sum is σ = 42447916. Its totient is φ = 10395360.

The previous prime is 22523327. The next prime is 22523339. The reversal of 22523332 is 23332522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4426816 + 18096516 = 2104^2 + 4254^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22523339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216519 + ... + 216622.

Almost surely, 2^22523332 is an apocalyptic number.

It is an amenable number.

22523332 is a deficient number, since it is larger than the sum of its proper divisors (19924584).

22523332 is a wasteful number, since it uses less digits than its factorization.

22523332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433158 (or 433156 counting only the distinct ones).

The product of its digits is 2160, while the sum is 22.

The square root of 22523332 is about 4745.8752617405. The cubic root of 22523332 is about 282.4083582981.

Adding to 22523332 its reverse (23332522), we get a palindrome (45855854).

The spelling of 22523332 in words is "twenty-two million, five hundred twenty-three thousand, three hundred thirty-two".