2640822260 has 12 divisors (see below), whose sum is σ = 5545726788. Its totient is φ = 1056328896.

The previous prime is 2640822181. The next prime is 2640822343. The reversal of 2640822260 is 622280462.

It can be written as a sum of positive squares in 2 ways, for example, as 909263716 + 1731558544 = 30154^2 + 41612^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66020537 + ... + 66020576.

It is an arithmetic number, because the mean of its divisors is an integer number (462143899).

Almost surely, 2^2640822260 is an apocalyptic number.

2640822260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2640822260 is an abundant number, since it is smaller than the sum of its proper divisors (2904904528).

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

2640822260 is a wasteful number, since it uses less digits than its factorization.

2640822260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132041122 (or 132041120 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 2640822260 is about 51388.9312984810. The cubic root of 2640822260 is about 1382.2281201129.

The spelling of 2640822260 in words is "two billion, six hundred forty million, eight hundred twenty-two thousand, two hundred sixty".