22042752 has 64 divisors (see below), whose sum is σ = 59119200. Its totient is φ = 7276544.

The previous prime is 22042751. The next prime is 22042771. The reversal of 22042752 is 25724022.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22042751) 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, 52399 + ... + 52817.

Almost surely, 2^22042752 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 22042752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29559600).

22042752 is an abundant number, since it is smaller than the sum of its proper divisors (37076448).

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

22042752 is a wasteful number, since it uses less digits than its factorization.

22042752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 22042752 is about 4694.9709264276. The cubic root of 22042752 is about 280.3853198420.

Adding to 22042752 its reverse (25724022), we get a palindrome (47766774).

The spelling of 22042752 in words is "twenty-two million, forty-two thousand, seven hundred fifty-two".