22090885 has 8 divisors (see below), whose sum is σ = 26540280. Its totient is φ = 17651904.

The previous prime is 22090883. The next prime is 22090907. The reversal of 22090885 is 58809022.

It can be written as a sum of positive squares in 4 ways, for example, as 3849444 + 18241441 = 1962^2 + 4271^2 .

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 22090885 - 2¹ = 22090883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22090885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22090883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3279 + ... + 7411.

It is an arithmetic number, because the mean of its divisors is an integer number (3317535).

Almost surely, 2^22090885 is an apocalyptic number.

It is an amenable number.

22090885 is a deficient number, since it is larger than the sum of its proper divisors (4449395).

22090885 is a wasteful number, since it uses less digits than its factorization.

22090885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 22090885 is about 4700.0941479932. The cubic root of 22090885 is about 280.5892564961.

The spelling of 22090885 in words is "twenty-two million, ninety thousand, eight hundred eighty-five".