22391189 has 8 divisors (see below), whose sum is σ = 22720320. Its totient is φ = 22064256.

The previous prime is 22391153. The next prime is 22391191. The reversal of 22391189 is 98119322.

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

It is a cyclic number.

It is not a de Polignac number, because 22391189 - 2¹² = 22387093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22391119) 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, 34502 + ... + 35144.

It is an arithmetic number, because the mean of its divisors is an integer number (2840040).

Almost surely, 2^22391189 is an apocalyptic number.

It is an amenable number.

22391189 is a deficient number, since it is larger than the sum of its proper divisors (329131).

22391189 is an equidigital number, since it uses as much as digits as its factorization.

22391189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099.

The product of its digits is 7776, while the sum is 35.

The square root of 22391189 is about 4731.9329031591. The cubic root of 22391189 is about 281.8549838705.

The spelling of 22391189 in words is "twenty-two million, three hundred ninety-one thousand, one hundred eighty-nine".