22243392 has 126 divisors (see below), whose sum is σ = 67562222. Its totient is φ = 6994944.

The previous prime is 22243391. The next prime is 22243393. The reversal of 22243392 is 29334222.

22243392 is a `hidden beast` number, since 222 + 433 + 9 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (22243391) and next prime (22243393).

It can be written as a sum of positive squares in only one way, i.e., 19501056 + 2742336 = 4416^2 + 1656^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22243391) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 304668 + ... + 304740.

Almost surely, 2^22243392 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 22243392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33781111).

22243392 is an abundant number, since it is smaller than the sum of its proper divisors (45318830).

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

22243392 is a wasteful number, since it uses less digits than its factorization.

22243392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 101 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 22243392 is about 4716.2900674153. The cubic root of 22243392 is about 281.2334698433.

The spelling of 22243392 in words is "twenty-two million, two hundred forty-three thousand, three hundred ninety-two".