2708805920 has 24 divisors (see below), whose sum is σ = 6399554364. Its totient is φ = 1083522304.

The previous prime is 2708805881. The next prime is 2708805923. The reversal of 2708805920 is 295088072.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2465321104 + 243484816 = 49652^2 + 15604^2 .

It is not an unprimeable number, because it can be changed into a prime (2708805923) 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, 8464859 + ... + 8465178.

Almost surely, 2^2708805920 is an apocalyptic number.

2708805920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2708805920 is an abundant number, since it is smaller than the sum of its proper divisors (3690748444).

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

2708805920 is a wasteful number, since it uses less digits than its factorization.

2708805920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16930052 (or 16930044 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 2708805920 is about 52046.1902544269. The cubic root of 2708805920 is about 1393.9888391458.

The spelling of 2708805920 in words is "two billion, seven hundred eight million, eight hundred five thousand, nine hundred twenty".