22390120 has 32 divisors (see below), whose sum is σ = 50752800. Its totient is φ = 8889408.

The previous prime is 22390099. The next prime is 22390157. The reversal of 22390120 is 2109322.

It is a happy number.

It is a super-2 number, since 2×22390120² = 1002634947228800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3547 + ... + 7573.

It is an arithmetic number, because the mean of its divisors is an integer number (1586025).

Almost surely, 2^22390120 is an apocalyptic number.

22390120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22390120 is an abundant number, since it is smaller than the sum of its proper divisors (28362680).

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

22390120 is a wasteful number, since it uses less digits than its factorization.

22390120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177 (or 4173 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 22390120 is about 4731.8199458559. The cubic root of 22390120 is about 281.8504983595.

Adding to 22390120 its reverse (2109322), we get a palindrome (24499442).

The spelling of 22390120 in words is "twenty-two million, three hundred ninety thousand, one hundred twenty".