22504488 has 64 divisors (see below), whose sum is σ = 59788800. Its totient is φ = 7043520.

The previous prime is 22504483. The next prime is 22504529. The reversal of 22504488 is 88440522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22504483) 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 15 ways as a sum of consecutive naturals, for example, 32223 + ... + 32913.

It is an arithmetic number, because the mean of its divisors is an integer number (934200).

Almost surely, 2^22504488 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 22504488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29894400).

22504488 is an abundant number, since it is smaller than the sum of its proper divisors (37284312).

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

22504488 is a wasteful number, since it uses less digits than its factorization.

22504488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 22504488 is about 4743.8895434021. The cubic root of 22504488 is about 282.3295779484.

It can be divided in two parts, 22 and 504488, that added together give a triangular number (504510 = T₁₀₀₄).

The spelling of 22504488 in words is "twenty-two million, five hundred four thousand, four hundred eighty-eight".