22479424 has 56 divisors (see below), whose sum is σ = 50035968. Its totient is φ = 9930240.

The previous prime is 22479409. The next prime is 22479427. The reversal of 22479424 is 42497422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22479424.

It is not an unprimeable number, because it can be changed into a prime (22479427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25617 + ... + 26479.

Almost surely, 2^22479424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22479424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25017984).

22479424 is an abundant number, since it is smaller than the sum of its proper divisors (27556544).

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

22479424 is a wasteful number, since it uses less digits than its factorization.

22479424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 913 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 22479424 is about 4741.2470933289. The cubic root of 22479424 is about 282.2247257191.

The spelling of 22479424 in words is "twenty-two million, four hundred seventy-nine thousand, four hundred twenty-four".