2207640085 has 16 divisors (see below), whose sum is σ = 3069098496. Its totient is φ = 1493071488.

The previous prime is 2207640079. The next prime is 2207640089. The reversal of 2207640085 is 5800467022.

It is a cyclic number.

It is not a de Polignac number, because 2207640085 - 2⁵ = 2207640053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2207640085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2207640089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429469 + ... + 434578.

It is an arithmetic number, because the mean of its divisors is an integer number (191818656).

Almost surely, 2^2207640085 is an apocalyptic number.

It is an amenable number.

2207640085 is a deficient number, since it is larger than the sum of its proper divisors (861458411).

2207640085 is an equidigital number, since it uses as much as digits as its factorization.

2207640085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864132.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 2207640085 is about 46985.5305918748. The cubic root of 2207640085 is about 1302.0952572780.

The spelling of 2207640085 in words is "two billion, two hundred seven million, six hundred forty thousand, eighty-five".