2021802108 has 12 divisors (see below), whose sum is σ = 4717538280. Its totient is φ = 673934032.

The previous prime is 2021802089. The next prime is 2021802119. The reversal of 2021802108 is 8012081202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84241743 + ... + 84241766.

It is an arithmetic number, because the mean of its divisors is an integer number (393128190).

Almost surely, 2^2021802108 is an apocalyptic number.

It is an amenable number.

2021802108 is an abundant number, since it is smaller than the sum of its proper divisors (2695736172).

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

2021802108 is a wasteful number, since it uses less digits than its factorization.

2021802108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168483516 (or 168483514 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 2021802108 is about 44964.4538274402. The cubic root of 2021802108 is about 1264.4826701416.

The spelling of 2021802108 in words is "two billion, twenty-one million, eight hundred two thousand, one hundred eight".