2085390684 has 120 divisors (see below), whose sum is σ = 5938012080. Its totient is φ = 634334976.

The previous prime is 2085390683. The next prime is 2085390709. The reversal of 2085390684 is 4860935802.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085390683) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 372087 + ... + 377649.

It is an arithmetic number, because the mean of its divisors is an integer number (49483434).

Almost surely, 2^2085390684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2085390684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2969006040).

2085390684 is an abundant number, since it is smaller than the sum of its proper divisors (3852621396).

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

2085390684 is a wasteful number, since it uses less digits than its factorization.

2085390684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681 (or 5670 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2085390684 is about 45666.0780448683. The cubic root of 2085390684 is about 1277.6026669327.

The spelling of 2085390684 in words is "two billion, eighty-five million, three hundred ninety thousand, six hundred eighty-four".