22798944 has 144 divisors (see below), whose sum is σ = 76108032. Its totient is φ = 6338304.

The previous prime is 22798943. The next prime is 22798967. The reversal of 22798944 is 44989722.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22798944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22798943) 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, 86557 + ... + 86819.

It is an arithmetic number, because the mean of its divisors is an integer number (528528).

Almost surely, 2^22798944 is an apocalyptic number.

22798944 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 22798944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38054016).

22798944 is an abundant number, since it is smaller than the sum of its proper divisors (53309088).

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

22798944 is a wasteful number, since it uses less digits than its factorization.

22798944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 318 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 22798944 is about 4774.8239758131. The cubic root of 22798944 is about 283.5556099677. Note that the first 3 decimals are identical.

The spelling of 22798944 in words is "twenty-two million, seven hundred ninety-eight thousand, nine hundred forty-four".