22189086 has 32 divisors (see below), whose sum is σ = 50245920. Its totient is φ = 7255872.

The previous prime is 22189081. The next prime is 22189099. The reversal of 22189086 is 68098122.

It is a self number, because there is not a number n which added to its sum of digits gives 22189086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22189081) 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, 1015 + ... + 6738.

It is an arithmetic number, because the mean of its divisors is an integer number (1570185).

Almost surely, 2^22189086 is an apocalyptic number.

22189086 is an abundant number, since it is smaller than the sum of its proper divisors (28056834).

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

22189086 is a wasteful number, since it uses less digits than its factorization.

22189086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817 (or 7811 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 22189086 is about 4710.5292696257. The cubic root of 22189086 is about 281.0044113913.

The spelling of 22189086 in words is "twenty-two million, one hundred eighty-nine thousand, eighty-six".