22044200 has 24 divisors (see below), whose sum is σ = 51253230. Its totient is φ = 8817600.

The previous prime is 22044157. The next prime is 22044203. The reversal of 22044200 is 244022.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12096484 + 9947716 = 3478^2 + 3154^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22044203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54911 + ... + 55310.

Almost surely, 2^22044200 is an apocalyptic number.

22044200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22044200 is an abundant number, since it is smaller than the sum of its proper divisors (29209030).

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

22044200 is a wasteful number, since it uses less digits than its factorization.

22044200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110237 (or 110228 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 22044200 is about 4695.1251314528. The cubic root of 22044200 is about 280.3914592607.

Adding to 22044200 its reverse (244022), we get a palindrome (22288222).

The spelling of 22044200 in words is "twenty-two million, forty-four thousand, two hundred".