2085690222 has 160 divisors (see below), whose sum is σ = 5985492480. Its totient is φ = 526979520.

The previous prime is 2085690197. The next prime is 2085690251. The reversal of 2085690222 is 2220965802.

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 79 ways as a sum of consecutive naturals, for example, 459279 + ... + 463797.

It is an arithmetic number, because the mean of its divisors is an integer number (37409328).

Almost surely, 2^2085690222 is an apocalyptic number.

2085690222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2085690222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2992746240).

2085690222 is an abundant number, since it is smaller than the sum of its proper divisors (3899802258).

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

2085690222 is a wasteful number, since it uses less digits than its factorization.

2085690222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588 (or 4579 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2085690222 is about 45669.3575825192. The cubic root of 2085690222 is about 1277.6638340846.

The spelling of 2085690222 in words is "two billion, eighty-five million, six hundred ninety thousand, two hundred twenty-two".