22445200 has 30 divisors (see below), whose sum is σ = 53925554. Its totient is φ = 8977920.

The previous prime is 22445197. The next prime is 22445221. The reversal of 22445200 is 254422.

It can be written as a sum of positive squares in 3 ways, for example, as 430336 + 22014864 = 656^2 + 4692^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27657 + ... + 28456.

Almost surely, 2^22445200 is an apocalyptic number.

22445200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22445200 is an abundant number, since it is smaller than the sum of its proper divisors (31480354).

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

22445200 is a wasteful number, since it uses less digits than its factorization.

22445200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56131 (or 56120 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22445200 is about 4737.6365415680. The cubic root of 22445200 is about 282.0814277873.

Adding to 22445200 its reverse (254422), we get a palindrome (22699622).

The spelling of 22445200 in words is "twenty-two million, four hundred forty-five thousand, two hundred".