2222305 has 4 divisors (see below), whose sum is σ = 2666772. Its totient is φ = 1777840.

The previous prime is 2222293. The next prime is 2222309. The reversal of 2222305 is 5032222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 904401 + 1317904 = 951^2 + 1148^2 .

It is not a de Polignac number, because 2222305 - 2⁵ = 2222273 is a prime.

It is a Duffinian number.

2222305 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2222309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222226 + ... + 222235.

It is an arithmetic number, because the mean of its divisors is an integer number (666693).

2^2222305 is an apocalyptic number.

It is an amenable number.

2222305 is a deficient number, since it is larger than the sum of its proper divisors (444467).

2222305 is an equidigital number, since it uses as much as digits as its factorization.

2222305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444466.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2222305 is about 1490.7397492520. The cubic root of 2222305 is about 130.4972083391.

Adding to 2222305 its reverse (5032222), we get a palindrome (7254527).

The spelling of 2222305 in words is "two million, two hundred twenty-two thousand, three hundred five".