2640244460260 has 96 divisors (see below), whose sum is σ = 6182046831744. Its totient is φ = 939129600000.

The previous prime is 2640244460257. The next prime is 2640244460291. The reversal of 2640244460260 is 620644420462.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1128460 + ... + 2560060.

It is an arithmetic number, because the mean of its divisors is an integer number (64396321164).

Almost surely, 2^{2640244460260} is an apocalyptic number.

2640244460260 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 2640244460260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3091023415872).

2640244460260 is an abundant number, since it is smaller than the sum of its proper divisors (3541802371484).

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

2640244460260 is a wasteful number, since it uses less digits than its factorization.

2640244460260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431805 (or 1431803 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 2640244460260 in words is "two trillion, six hundred forty billion, two hundred forty-four million, four hundred sixty thousand, two hundred sixty".