2812836 has 72 divisors (see below), whose sum is σ = 7583520. Its totient is φ = 808704.

The previous prime is 2812829. The next prime is 2812853. The reversal of 2812836 is 6382182.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38496 + ... + 38568.

2^2812836 is an apocalyptic number.

2812836 is a gapful number since it is divisible by the number (26) 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 2812836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3791760).

2812836 is an abundant number, since it is smaller than the sum of its proper divisors (4770684).

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

2812836 is a wasteful number, since it uses less digits than its factorization.

2812836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 110 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 2812836 is about 1677.1511559785. The cubic root of 2812836 is about 141.1610252302.

The spelling of 2812836 in words is "two million, eight hundred twelve thousand, eight hundred thirty-six".