2680244440 has 16 divisors (see below), whose sum is σ = 6030550080. Its totient is φ = 1072097760.

The previous prime is 2680244431. The next prime is 2680244447. The reversal of 2680244440 is 444420862.

It is a junction number, because it is equal to n+sod(n) for n = 2680244396 and 2680244405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680244447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33503016 + ... + 33503095.

It is an arithmetic number, because the mean of its divisors is an integer number (376909380).

Almost surely, 2^2680244440 is an apocalyptic number.

2680244440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2680244440 is an abundant number, since it is smaller than the sum of its proper divisors (3350305640).

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

2680244440 is a wasteful number, since it uses less digits than its factorization.

2680244440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67006122 (or 67006118 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 2680244440 is about 51771.0772536172. The cubic root of 2680244440 is about 1389.0721409783.

The spelling of 2680244440 in words is "two billion, six hundred eighty million, two hundred forty-four thousand, four hundred forty".