2726640260 has 48 divisors (see below), whose sum is σ = 5905487280. Its totient is φ = 1056706560.

The previous prime is 2726640253. The next prime is 2726640307. The reversal of 2726640260 is 620466272.

It can be written as a sum of positive squares in 8 ways, for example, as 324072004 + 2402568256 = 18002^2 + 49016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2726640260.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170696 + ... + 185984.

It is an arithmetic number, because the mean of its divisors is an integer number (123030985).

Almost surely, 2^2726640260 is an apocalyptic number.

2726640260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2726640260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2952743640).

2726640260 is an abundant number, since it is smaller than the sum of its proper divisors (3178847020).

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

2726640260 is a wasteful number, since it uses less digits than its factorization.

2726640260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15576 (or 15574 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 2726640260 is about 52217.2410224822. The cubic root of 2726640260 is about 1397.0414153674.

The spelling of 2726640260 in words is "two billion, seven hundred twenty-six million, six hundred forty thousand, two hundred sixty".