22532144 has 20 divisors (see below), whose sum is σ = 43773240. Its totient is φ = 11235840.

The previous prime is 22532117. The next prime is 22532161. The reversal of 22532144 is 44123522.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5024 + ... + 8384.

It is an arithmetic number, because the mean of its divisors is an integer number (2188662).

Almost surely, 2^22532144 is an apocalyptic number.

It is an amenable number.

22532144 is a deficient number, since it is larger than the sum of its proper divisors (21241096).

22532144 is a wasteful number, since it uses less digits than its factorization.

22532144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788 (or 3782 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 22532144 is about 4746.8035560786. The cubic root of 22532144 is about 282.4451831927.

Adding to 22532144 its reverse (44123522), we get a palindrome (66655666).

The spelling of 22532144 in words is "twenty-two million, five hundred thirty-two thousand, one hundred forty-four".