2640602205 has 24 divisors (see below), whose sum is σ = 4578511392. Its totient is φ = 1407869664.

The previous prime is 2640602189. The next prime is 2640602207. The reversal of 2640602205 is 5022060462.

2640602205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2640602205 - 2⁴ = 2640602189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640602207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170182 + ... + 185048.

It is an arithmetic number, because the mean of its divisors is an integer number (190771308).

Almost surely, 2^2640602205 is an apocalyptic number.

It is an amenable number.

2640602205 is a deficient number, since it is larger than the sum of its proper divisors (1937909187).

2640602205 is a wasteful number, since it uses less digits than its factorization.

2640602205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18825 (or 18822 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2640602205 is about 51386.7901799675. The cubic root of 2640602205 is about 1382.1897261800.

Adding to 2640602205 its reverse (5022060462), we get a palindrome (7662662667).

The spelling of 2640602205 in words is "two billion, six hundred forty million, six hundred two thousand, two hundred five".