2108305788 has 12 divisors (see below), whose sum is σ = 4919380200. Its totient is φ = 702768592.

The previous prime is 2108305783. The next prime is 2108305799. The reversal of 2108305788 is 8875038012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108305783) 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, 87846063 + ... + 87846086.

It is an arithmetic number, because the mean of its divisors is an integer number (409948350).

Almost surely, 2^2108305788 is an apocalyptic number.

It is an amenable number.

2108305788 is an abundant number, since it is smaller than the sum of its proper divisors (2811074412).

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

2108305788 is a wasteful number, since it uses less digits than its factorization.

2108305788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175692156 (or 175692154 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 2108305788 is about 45916.2910958627. The cubic root of 2108305788 is about 1282.2652328008.

The spelling of 2108305788 in words is "two billion, one hundred eight million, three hundred five thousand, seven hundred eighty-eight".