22085766 has 24 divisors (see below), whose sum is σ = 47951280. Its totient is φ = 7346736.

The previous prime is 22085761. The next prime is 22085779. The reversal of 22085766 is 66758022.

It is a self number, because there is not a number n which added to its sum of digits gives 22085766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22085761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10815 + ... + 12693.

It is an arithmetic number, because the mean of its divisors is an integer number (1997970).

Almost surely, 2^22085766 is an apocalyptic number.

22085766 is an abundant number, since it is smaller than the sum of its proper divisors (25865514).

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

22085766 is a wasteful number, since it uses less digits than its factorization.

22085766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540 (or 2537 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 22085766 is about 4699.5495528827. The cubic root of 22085766 is about 280.5675816838.

The spelling of 22085766 in words is "twenty-two million, eighty-five thousand, seven hundred sixty-six".