22445600 has 36 divisors (see below), whose sum is σ = 54797274. Its totient is φ = 8977920.

The previous prime is 22445597. The next prime is 22445611. The reversal of 22445600 is 654422.

It can be written as a sum of positive squares in 3 ways, for example, as 17007376 + 5438224 = 4124^2 + 2332^2 .

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, 13229 + ... + 14828.

Almost surely, 2^22445600 is an apocalyptic number.

22445600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22445600 is an abundant number, since it is smaller than the sum of its proper divisors (32351674).

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

22445600 is a wasteful number, since it uses less digits than its factorization.

22445600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28077 (or 28064 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 22445600 is about 4737.6787565220. The cubic root of 22445600 is about 282.0831034522.

The spelling of 22445600 in words is "twenty-two million, four hundred forty-five thousand, six hundred".