22479400 has 24 divisors (see below), whose sum is σ = 52265070. Its totient is φ = 8991680.

The previous prime is 22479383. The next prime is 22479403. The reversal of 22479400 is 497422.

It can be written as a sum of positive squares in 3 ways, for example, as 21325924 + 1153476 = 4618^2 + 1074^2 .

It is not an unprimeable number, because it can be changed into a prime (22479403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55999 + ... + 56398.

Almost surely, 2^22479400 is an apocalyptic number.

22479400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22479400 is an abundant number, since it is smaller than the sum of its proper divisors (29785670).

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

22479400 is a wasteful number, since it uses less digits than its factorization.

22479400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112413 (or 112404 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 22479400 is about 4741.2445623486. The cubic root of 22479400 is about 282.2246252806.

The spelling of 22479400 in words is "twenty-two million, four hundred seventy-nine thousand, four hundred".