2105079808 has 96 divisors (see below), whose sum is σ = 4800584880. Its totient is φ = 914227200.

The previous prime is 2105079773. The next prime is 2105079829. The reversal of 2105079808 is 8089705012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450283 + ... + 454933.

Almost surely, 2^2105079808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105079808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2400292440).

2105079808 is an abundant number, since it is smaller than the sum of its proper divisors (2695505072).

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

2105079808 is a wasteful number, since it uses less digits than its factorization.

2105079808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4703 (or 4683 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 2105079808 is about 45881.1487214520. The cubic root of 2105079808 is about 1281.6108885023.

The spelling of 2105079808 in words is "two billion, one hundred five million, seventy-nine thousand, eight hundred eight".