2812722 has 32 divisors (see below), whose sum is σ = 6462720. Its totient is φ = 807120.

The previous prime is 2812717. The next prime is 2812729. The reversal of 2812722 is 2272182.

It is a happy number.

It is a super-2 number, since 2×2812722² = 15822810098568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2812692 and 2812701.

It is not an unprimeable number, because it can be changed into a prime (2812729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (201960).

2^2812722 is an apocalyptic number.

2812722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2812722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3231360).

2812722 is an abundant number, since it is smaller than the sum of its proper divisors (3649998).

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

2812722 is a wasteful number, since it uses less digits than its factorization.

2812722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278.

The product of its digits is 896, while the sum is 24.

The square root of 2812722 is about 1677.1171694309. The cubic root of 2812722 is about 141.1591181900.

It can be divided in two parts, 281 and 2722, that added together give a palindrome (3003).

The spelling of 2812722 in words is "two million, eight hundred twelve thousand, seven hundred twenty-two".