2223306 has 12 divisors (see below), whose sum is σ = 4817202. Its totient is φ = 741096.

The previous prime is 2223283. The next prime is 2223317. The reversal of 2223306 is 6033222.

2223306 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., 2223081 + 225 = 1491^2 + 15^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 123517 = 2223306 / (2 + 2 + 2 + 3 + 3 + 0 + 6).

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, 61741 + ... + 61776.

2^2223306 is an apocalyptic number.

2223306 is an abundant number, since it is smaller than the sum of its proper divisors (2593896).

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

2223306 is a wasteful number, since it uses less digits than its factorization.

2223306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123525 (or 123522 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2223306 is about 1491.0754508072. The cubic root of 2223306 is about 130.5167988239.

Adding to 2223306 its reverse (6033222), we get a palindrome (8256528).

The spelling of 2223306 in words is "two million, two hundred twenty-three thousand, three hundred six".