22442200 has 72 divisors (see below), whose sum is σ = 57490740. Its totient is φ = 8080000.

The previous prime is 22442179. The next prime is 22442207. The reversal of 22442200 is 224422.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442207) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 222150 + ... + 222250.

Almost surely, 2^22442200 is an apocalyptic number.

22442200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22442200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28745370).

22442200 is an abundant number, since it is smaller than the sum of its proper divisors (35048540).

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

22442200 is a wasteful number, since it uses less digits than its factorization.

22442200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 22442200 is about 4737.3199174217. The cubic root of 22442200 is about 282.0688596660.

Adding to 22442200 its reverse (224422), we get a palindrome (22666622).

Multiplying 22442200 by its reverse (224422), we get a square (5036523408400 = 2244220²).

22442200 divided by its reverse (224422) gives a square (100 = 10²).

It can be divided in two parts, 2244 and 2200, that added together give a palindrome (4444).

The spelling of 22442200 in words is "twenty-two million, four hundred forty-two thousand, two hundred".