2812638020 has 96 divisors (see below), whose sum is σ = 6412089600. Its totient is φ = 1032998400.

The previous prime is 2812638019. The next prime is 2812638043. The reversal of 2812638020 is 208362182.

2812638020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1644926 + ... + 1646634.

It is an arithmetic number, because the mean of its divisors is an integer number (66792600).

Almost surely, 2^2812638020 is an apocalyptic number.

2812638020 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 2812638020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3206044800).

2812638020 is an abundant number, since it is smaller than the sum of its proper divisors (3599451580).

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

2812638020 is a wasteful number, since it uses less digits than its factorization.

2812638020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2812638020 is about 53034.3098380661. The cubic root of 2812638020 is about 1411.5771330403.

The spelling of 2812638020 in words is "two billion, eight hundred twelve million, six hundred thirty-eight thousand, twenty".