2222845 has 4 divisors (see below), whose sum is σ = 2667420. Its totient is φ = 1778272.

The previous prime is 2222839. The next prime is 2222893. The reversal of 2222845 is 5482222.

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 1194649 + 1028196 = 1093^2 + 1014^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222845 - 2⁹ = 2222333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222280 + ... + 222289.

It is an arithmetic number, because the mean of its divisors is an integer number (666855).

2^2222845 is an apocalyptic number.

It is an amenable number.

2222845 is a deficient number, since it is larger than the sum of its proper divisors (444575).

2222845 is an equidigital number, since it uses as much as digits as its factorization.

2222845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444574.

The product of its digits is 2560, while the sum is 25.

The square root of 2222845 is about 1490.9208563837. The cubic root of 2222845 is about 130.5077773632.

The spelling of 2222845 in words is "two million, two hundred twenty-two thousand, eight hundred forty-five".