22189422 has 8 divisors (see below), whose sum is σ = 44378856. Its totient is φ = 7396472.

The previous prime is 22189373. The next prime is 22189423. The reversal of 22189422 is 22498122.

It is a sphenic number, since it is the product of 3 distinct primes.

22189422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 22189422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22189423) 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 3 ways as a sum of consecutive naturals, for example, 1849113 + ... + 1849124.

It is an arithmetic number, because the mean of its divisors is an integer number (5547357).

Almost surely, 2^22189422 is an apocalyptic number.

22189422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22189422 is a wasteful number, since it uses less digits than its factorization.

22189422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698242.

The product of its digits is 4608, while the sum is 30.

The square root of 22189422 is about 4710.5649342727. The cubic root of 22189422 is about 281.0058297613.

The spelling of 22189422 in words is "twenty-two million, one hundred eighty-nine thousand, four hundred twenty-two".