2608880640 has 176 divisors, whose sum is σ = 8615086080. Its totient is φ = 673136640.

The previous prime is 2608880623. The next prime is 2608880663. The reversal of 2608880640 is 460888062.

It is a junction number, because it is equal to n+sod(n) for n = 2608880592 and 2608880601.

It is a congruent number.

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, 473421 + ... + 478899.

Almost surely, 2^2608880640 is an apocalyptic number.

2608880640 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 2608880640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4307543040).

2608880640 is an abundant number, since it is smaller than the sum of its proper divisors (6006205440).

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

2608880640 is a wasteful number, since it uses less digits than its factorization.

2608880640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5538 (or 5520 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 2608880640 is about 51077.2027425152. The cubic root of 2608880640 is about 1376.6326638166.

The spelling of 2608880640 in words is "two billion, six hundred eight million, eight hundred eighty thousand, six hundred forty".