2090356686 has 128 divisors (see below), whose sum is σ = 5408363520. Its totient is φ = 591436800.

The previous prime is 2090356663. The next prime is 2090356717. The reversal of 2090356686 is 6866530902.

It is a happy number.

2090356686 is a `hidden beast` number, since 2 + 0 + 9 + 0 + 3 + 566 + 86 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1382671 + ... + 1384181.

It is an arithmetic number, because the mean of its divisors is an integer number (42252840).

Almost surely, 2^2090356686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2090356686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2704181760).

2090356686 is an abundant number, since it is smaller than the sum of its proper divisors (3318006834).

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

2090356686 is a wasteful number, since it uses less digits than its factorization.

2090356686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 2090356686 is about 45720.4186988702. The cubic root of 2090356686 is about 1278.6159939036.

The spelling of 2090356686 in words is "two billion, ninety million, three hundred fifty-six thousand, six hundred eighty-six".