22019166 has 24 divisors (see below), whose sum is σ = 51378600. Its totient is φ = 6775056.

The previous prime is 22019147. The next prime is 22019183. The reversal of 22019166 is 66191022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46816 + ... + 47283.

It is an arithmetic number, because the mean of its divisors is an integer number (2140775).

Almost surely, 2^22019166 is an apocalyptic number.

22019166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22019166 is an abundant number, since it is smaller than the sum of its proper divisors (29359434).

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

22019166 is a wasteful number, since it uses less digits than its factorization.

22019166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94120 (or 94117 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 22019166 is about 4692.4584175036. The cubic root of 22019166 is about 280.2852789717.

The spelling of 22019166 in words is "twenty-two million, nineteen thousand, one hundred sixty-six".