2790222 has 16 divisors (see below), whose sum is σ = 5823360. Its totient is φ = 889592.

The previous prime is 2790209. The next prime is 2790223. The reversal of 2790222 is 2220972.

2790222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2790192 and 2790201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2790223) 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 7 ways as a sum of consecutive naturals, for example, 9972 + ... + 10247.

It is an arithmetic number, because the mean of its divisors is an integer number (363960).

2^2790222 is an apocalyptic number.

2790222 is an abundant number, since it is smaller than the sum of its proper divisors (3033138).

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

2790222 is a wasteful number, since it uses less digits than its factorization.

2790222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20247.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2790222 is about 1670.3957614889. The cubic root of 2790222 is about 140.7817154610.

The spelling of 2790222 in words is "two million, seven hundred ninety thousand, two hundred twenty-two".