2640860322 has 32 divisors (see below), whose sum is σ = 5532392448. Its totient is φ = 838800336.

The previous prime is 2640860317. The next prime is 2640860323. The reversal of 2640860322 is 2230680462.

It is not an unprimeable number, because it can be changed into a prime (2640860323) 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, 88 + ... + 72675.

It is an arithmetic number, because the mean of its divisors is an integer number (172887264).

Almost surely, 2^2640860322 is an apocalyptic number.

2640860322 is an abundant number, since it is smaller than the sum of its proper divisors (2891532126).

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

2640860322 is a wasteful number, since it uses less digits than its factorization.

2640860322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73054.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 2640860322 is about 51389.3016298140. The cubic root of 2640860322 is about 1382.2347607357.

The spelling of 2640860322 in words is "two billion, six hundred forty million, eight hundred sixty thousand, three hundred twenty-two".