22043320 has 32 divisors (see below), whose sum is σ = 53413920. Its totient is φ = 8138880.

The previous prime is 22043317. The next prime is 22043323. The reversal of 22043320 is 2334022.

It is an interprime number because it is at equal distance from previous prime (22043317) and next prime (22043323).

It is a junction number, because it is equal to n+sod(n) for n = 22043294 and 22043303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20676 + ... + 21715.

It is an arithmetic number, because the mean of its divisors is an integer number (1669185).

Almost surely, 2^22043320 is an apocalyptic number.

22043320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22043320 is an abundant number, since it is smaller than the sum of its proper divisors (31370600).

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

22043320 is a wasteful number, since it uses less digits than its factorization.

22043320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42415 (or 42411 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 22043320 is about 4695.0314162953. The cubic root of 22043320 is about 280.3877281543.

Adding to 22043320 its reverse (2334022), we get a palindrome (24377342).

The spelling of 22043320 in words is "twenty-two million, forty-three thousand, three hundred twenty".