2222289 has 8 divisors (see below), whose sum is σ = 3292320. Its totient is φ = 1481508.

The previous prime is 2222287. The next prime is 2222293. The reversal of 2222289 is 9822222.

It is not a de Polignac number, because 2222289 - 2¹ = 2222287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 82307 = 2222289 / (2 + 2 + 2 + 2 + 2 + 8 + 9).

It is a d-powerful number, because it can be written as 2⁵ + 2⁹ + 2¹⁶ + 2²⁰ + 2²⁰ + 8 + 9⁵ .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2222281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41127 + ... + 41180.

It is an arithmetic number, because the mean of its divisors is an integer number (411540).

2^2222289 is an apocalyptic number.

It is an amenable number.

2222289 is a deficient number, since it is larger than the sum of its proper divisors (1070031).

2222289 is an equidigital number, since it uses as much as digits as its factorization.

2222289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82316 (or 82310 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2222289 is about 1490.7343827792. The cubic root of 2222289 is about 130.4968951567.

The spelling of 2222289 in words is "two million, two hundred twenty-two thousand, two hundred eighty-nine".