22140992 has 14 divisors (see below), whose sum is σ = 43936158. Its totient is φ = 11070464.

The previous prime is 22140977. The next prime is 22141013. The reversal of 22140992 is 29904122.

It can be written as a sum of positive squares in only one way, i.e., 20939776 + 1201216 = 4576^2 + 1096^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172913 + ... + 173040.

It is an arithmetic number, because the mean of its divisors is an integer number (3138297).

Almost surely, 2^22140992 is an apocalyptic number.

It is an amenable number.

22140992 is a deficient number, since it is larger than the sum of its proper divisors (21795166).

22140992 is an equidigital number, since it uses as much as digits as its factorization.

22140992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345965 (or 345955 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 22140992 is about 4705.4215539099. The cubic root of 22140992 is about 280.8012424087.

It can be divided in two parts, 22140 and 992, that added together give a palindrome (23132).

The spelling of 22140992 in words is "twenty-two million, one hundred forty thousand, nine hundred ninety-two".