22618944 has 84 divisors (see below), whose sum is σ = 65617344. Its totient is φ = 7448832.

The previous prime is 22618943. The next prime is 22618957. The reversal of 22618944 is 44981622.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 22618899 and 22618908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22618943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61449 + ... + 61815.

Almost surely, 2^22618944 is an apocalyptic number.

22618944 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 22618944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32808672).

22618944 is an abundant number, since it is smaller than the sum of its proper divisors (42998400).

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

22618944 is a wasteful number, since it uses less digits than its factorization.

22618944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 479 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 22618944 is about 4755.9377624187. The cubic root of 22618944 is about 282.8074039089.

The spelling of 22618944 in words is "twenty-two million, six hundred eighteen thousand, nine hundred forty-four".