2805822 has 24 divisors (see below), whose sum is σ = 6145776. Its totient is φ = 925056.

The previous prime is 2805809. The next prime is 2805827. The reversal of 2805822 is 2285082.

2805822 is a `hidden beast` number, since 2 + 80 + 582 + 2 = 666.

2805822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 943 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (256074).

2^2805822 is an apocalyptic number.

2805822 is an abundant number, since it is smaller than the sum of its proper divisors (3339954).

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

2805822 is a wasteful number, since it uses less digits than its factorization.

2805822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 2805822 is about 1675.0588049379. The cubic root of 2805822 is about 141.0435959955.

The spelling of 2805822 in words is "two million, eight hundred five thousand, eight hundred twenty-two".