22459400 has 24 divisors (see below), whose sum is σ = 52218570. Its totient is φ = 8983680.

The previous prime is 22459391. The next prime is 22459421. The reversal of 22459400 is 495422.

It can be written as a sum of positive squares in 3 ways, for example, as 15792676 + 6666724 = 3974^2 + 2582^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22459400.

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, 55949 + ... + 56348.

Almost surely, 2^22459400 is an apocalyptic number.

22459400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22459400 is an abundant number, since it is smaller than the sum of its proper divisors (29759170).

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

22459400 is a wasteful number, since it uses less digits than its factorization.

22459400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112313 (or 112304 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22459400 is about 4739.1349421598. The cubic root of 22459400 is about 282.1409017040.

The spelling of 22459400 in words is "twenty-two million, four hundred fifty-nine thousand, four hundred".