22600400 has 30 divisors (see below), whose sum is σ = 54298422. Its totient is φ = 9040000.

The previous prime is 22600343. The next prime is 22600453. The reversal of 22600400 is 400622.

It can be written as a sum of positive squares in 3 ways, for example, as 94864 + 22505536 = 308^2 + 4744^2 .

It is a congruent number.

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, 27851 + ... + 28650.

Almost surely, 2^22600400 is an apocalyptic number.

22600400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22600400 is an abundant number, since it is smaller than the sum of its proper divisors (31698022).

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

22600400 is a wasteful number, since it uses less digits than its factorization.

22600400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56519 (or 56508 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22600400 is about 4753.9877997319. The cubic root of 22600400 is about 282.7300968170.

The spelling of 22600400 in words is "twenty-two million, six hundred thousand, four hundred".