22108986 has 12 divisors (see below), whose sum is σ = 47902842. Its totient is φ = 7369656.

The previous prime is 22108981. The next prime is 22108997. The reversal of 22108986 is 68980122.

It can be written as a sum of positive squares in only one way, i.e., 12467961 + 9641025 = 3531^2 + 3105^2 .

It is a super-3 number, since 3×22108986³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22108986.

It is not an unprimeable number, because it can be changed into a prime (22108981) 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 5 ways as a sum of consecutive naturals, for example, 614121 + ... + 614156.

Almost surely, 2^22108986 is an apocalyptic number.

22108986 is an abundant number, since it is smaller than the sum of its proper divisors (25793856).

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

22108986 is a wasteful number, since it uses less digits than its factorization.

22108986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228285 (or 1228282 counting only the distinct ones).

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

The square root of 22108986 is about 4702.0193534268. The cubic root of 22108986 is about 280.6658727047.

The spelling of 22108986 in words is "twenty-two million, one hundred eight thousand, nine hundred eighty-six".