2164822 has 16 divisors (see below), whose sum is σ = 3729600. Its totient is φ = 932040.

The previous prime is 2164817. The next prime is 2164843. The reversal of 2164822 is 2284612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2172 + ... + 3007.

It is an arithmetic number, because the mean of its divisors is an integer number (233100).

2^2164822 is an apocalyptic number.

2164822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2164822 is a deficient number, since it is larger than the sum of its proper divisors (1564778).

2164822 is a wasteful number, since it uses less digits than its factorization.

2164822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211.

The product of its digits is 1536, while the sum is 25.

The square root of 2164822 is about 1471.3334088506. Note that the first 3 decimals coincide. The cubic root of 2164822 is about 129.3622014302.

It can be divided in two parts, 216482 and 2, that multiplied together give a square (432964 = 658²).

The spelling of 2164822 in words is "two million, one hundred sixty-four thousand, eight hundred twenty-two".