22000085 has 8 divisors (see below), whose sum is σ = 26672856. Its totient is φ = 17418240.

The previous prime is 22000061. The next prime is 22000087. The reversal of 22000085 is 58000022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 78961 + 21921124 = 281^2 + 4682^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22000085 - 2⁶ = 22000021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000087) 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, 22196 + ... + 23165.

It is an arithmetic number, because the mean of its divisors is an integer number (3334107).

Almost surely, 2^22000085 is an apocalyptic number.

It is an amenable number.

22000085 is a deficient number, since it is larger than the sum of its proper divisors (4672771).

22000085 is an equidigital number, since it uses as much as digits as its factorization.

22000085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45463.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 22000085 is about 4690.4248208451. The cubic root of 22000085 is about 280.2042939338.

The spelling of 22000085 in words is "twenty-two million, eighty-five", and thus it is an aban number and an uban number.