2221796 has 18 divisors (see below), whose sum is σ = 3982230. Its totient is φ = 1084512.

The previous prime is 2221789. The next prime is 2221829. The reversal of 2221796 is 6971222.

2221796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1597696 + 624100 = 1264^2 + 790^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 24920 + ... + 25008.

It is an arithmetic number, because the mean of its divisors is an integer number (221235).

2^2221796 is an apocalyptic number.

It is an amenable number.

2221796 is a deficient number, since it is larger than the sum of its proper divisors (1760434).

2221796 is an equidigital number, since it uses as much as digits as its factorization.

2221796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 170 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 2221796 is about 1490.5690188649. The cubic root of 2221796 is about 130.4872444876.

The spelling of 2221796 in words is "two million, two hundred twenty-one thousand, seven hundred ninety-six".