22132544 has 56 divisors (see below), whose sum is σ = 50718720. Its totient is φ = 9386496.

The previous prime is 22132529. The next prime is 22132567. The reversal of 22132544 is 44523122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 56702 + ... + 57090.

Almost surely, 2^22132544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22132544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25359360).

22132544 is an abundant number, since it is smaller than the sum of its proper divisors (28586176).

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

22132544 is a wasteful number, since it uses less digits than its factorization.

22132544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 525 counting only the distinct ones).

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

The square root of 22132544 is about 4704.5237803629. The cubic root of 22132544 is about 280.7655241857.

Adding to 22132544 its reverse (44523122), we get a palindrome (66655666).

The spelling of 22132544 in words is "twenty-two million, one hundred thirty-two thousand, five hundred forty-four".