22243120 has 40 divisors (see below), whose sum is σ = 53389440. Its totient is φ = 8609280.

The previous prime is 22243099. The next prime is 22243121. The reversal of 22243120 is 2134222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 22243094 and 22243103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005 + ... + 6964.

It is an arithmetic number, because the mean of its divisors is an integer number (1334736).

Almost surely, 2^22243120 is an apocalyptic number.

22243120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22243120 is an abundant number, since it is smaller than the sum of its proper divisors (31146320).

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

22243120 is a wasteful number, since it uses less digits than its factorization.

22243120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9013 (or 9007 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22243120 is about 4716.2612311025. The cubic root of 22243120 is about 281.2323234981.

Adding to 22243120 its reverse (2134222), we get a palindrome (24377342).

The spelling of 22243120 in words is "twenty-two million, two hundred forty-three thousand, one hundred twenty".