22142292 has 24 divisors (see below), whose sum is σ = 51744000. Its totient is φ = 7369536.

The previous prime is 22142257. The next prime is 22142293. The reversal of 22142292 is 29224122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11709 + ... + 13467.

It is an arithmetic number, because the mean of its divisors is an integer number (2156000).

Almost surely, 2^22142292 is an apocalyptic number.

It is an amenable number.

22142292 is an abundant number, since it is smaller than the sum of its proper divisors (29601708).

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

22142292 is a wasteful number, since it uses less digits than its factorization.

22142292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2813 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 22142292 is about 4705.5596904088. The cubic root of 22142292 is about 280.8067380141.

The spelling of 22142292 in words is "twenty-two million, one hundred forty-two thousand, two hundred ninety-two".