22798224 has 120 divisors (see below), whose sum is σ = 69058080. Its totient is φ = 6994944.

The previous prime is 22798187. The next prime is 22798229. The reversal of 22798224 is 42289722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (22798229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163947 + ... + 164085.

It is an arithmetic number, because the mean of its divisors is an integer number (575484).

Almost surely, 2^22798224 is an apocalyptic number.

22798224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22798224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34529040).

22798224 is an abundant number, since it is smaller than the sum of its proper divisors (46259856).

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

22798224 is a wasteful number, since it uses less digits than its factorization.

22798224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 228 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22798224 is about 4774.7485797684. The cubic root of 22798224 is about 283.5526250022.

The spelling of 22798224 in words is "twenty-two million, seven hundred ninety-eight thousand, two hundred twenty-four".