22032544 has 48 divisors (see below), whose sum is σ = 46498536. Its totient is φ = 10240000.

The previous prime is 22032541. The next prime is 22032553. The reversal of 22032544 is 44523022.

It can be written as a sum of positive squares in 4 ways, for example, as 18835600 + 3196944 = 4340^2 + 1788^2 .

It is a super-2 number, since 2×22032544² = 970865990223872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22032541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54744 + ... + 55144.

Almost surely, 2^22032544 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 22032544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23249268).

22032544 is an abundant number, since it is smaller than the sum of its proper divisors (24465992).

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

22032544 is a wasteful number, since it uses less digits than its factorization.

22032544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 22032544 is about 4693.8836798540. The cubic root of 22032544 is about 280.3420310052.

Adding to 22032544 its reverse (44523022), we get a palindrome (66555566).

The spelling of 22032544 in words is "twenty-two million, thirty-two thousand, five hundred forty-four".