22449189 has 16 divisors (see below), whose sum is σ = 34352640. Its totient is φ = 12774000.

The previous prime is 22449149. The next prime is 22449191. The reversal of 22449189 is 98194422.

It is not a de Polignac number, because 22449189 - 2¹⁷ = 22318117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22449149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3142 + ... + 7400.

It is an arithmetic number, because the mean of its divisors is an integer number (2147040).

Almost surely, 2^22449189 is an apocalyptic number.

It is an amenable number.

22449189 is a deficient number, since it is larger than the sum of its proper divisors (11903451).

22449189 is a wasteful number, since it uses less digits than its factorization.

22449189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520.

The product of its digits is 41472, while the sum is 39.

The square root of 22449189 is about 4738.0575133698. The cubic root of 22449189 is about 282.0981374648.

The spelling of 22449189 in words is "twenty-two million, four hundred forty-nine thousand, one hundred eighty-nine".