22408828 has 48 divisors (see below), whose sum is σ = 45730720. Its totient is φ = 9517824.

The previous prime is 22408817. The next prime is 22408871. The reversal of 22408828 is 82880422.

It is a junction number, because it is equal to n+sod(n) for n = 22408793 and 22408802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36250 + ... + 36862.

Almost surely, 2^22408828 is an apocalyptic number.

It is an amenable number.

22408828 is an abundant number, since it is smaller than the sum of its proper divisors (23321892).

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

22408828 is a wasteful number, since it uses less digits than its factorization.

22408828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 22408828 is about 4733.7963623291. The cubic root of 22408828 is about 281.9289762957.

The spelling of 22408828 in words is "twenty-two million, four hundred eight thousand, eight hundred twenty-eight".