22752280 has 16 divisors (see below), whose sum is σ = 51192720. Its totient is φ = 9100896.

The previous prime is 22752271. The next prime is 22752287. The reversal of 22752280 is 8225722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22752287) by changing a digit.

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, 284364 + ... + 284443.

It is an arithmetic number, because the mean of its divisors is an integer number (3199545).

Almost surely, 2^22752280 is an apocalyptic number.

22752280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22752280 is an abundant number, since it is smaller than the sum of its proper divisors (28440440).

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

22752280 is a wasteful number, since it uses less digits than its factorization.

22752280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568818 (or 568814 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 22752280 is about 4769.9350100394. The cubic root of 22752280 is about 283.3620209323.

It can be divided in two parts, 22752 and 280, that added together give a palindrome (23032).

The spelling of 22752280 in words is "twenty-two million, seven hundred fifty-two thousand, two hundred eighty".