22504444 has 12 divisors (see below), whose sum is σ = 39937968. Its totient is φ = 11093600.

The previous prime is 22504421. The next prime is 22504453. The reversal of 22504444 is 44440522.

It is a happy number.

It is a super-3 number, since 3×22504444³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39337 + ... + 39904.

It is an arithmetic number, because the mean of its divisors is an integer number (3328164).

Almost surely, 2^22504444 is an apocalyptic number.

It is an amenable number.

22504444 is a deficient number, since it is larger than the sum of its proper divisors (17433524).

22504444 is a wasteful number, since it uses less digits than its factorization.

22504444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79316 (or 79314 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 22504444 is about 4743.8849058551. The cubic root of 22504444 is about 282.3293939479.

Adding to 22504444 its reverse (44440522), we get a palindrome (66944966).

The spelling of 22504444 in words is "twenty-two million, five hundred four thousand, four hundred forty-four".