2297218 has 24 divisors (see below), whose sum is σ = 4374864. Its totient is φ = 894600.

The previous prime is 2297213. The next prime is 2297221. The reversal of 2297218 is 8127922.

It is a self number, because there is not a number n which added to its sum of digits gives 2297218.

It is not an unprimeable number, because it can be changed into a prime (2297213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (182286).

2^2297218 is an apocalyptic number.

2297218 is a deficient number, since it is larger than the sum of its proper divisors (2077646).

2297218 is a wasteful number, since it uses less digits than its factorization.

2297218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158 (or 2151 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 2297218 is about 1515.6576130512. The cubic root of 2297218 is about 131.9473695906.

It can be divided in two parts, 229 and 7218, that added together give a palindrome (7447).

The spelling of 2297218 in words is "two million, two hundred ninety-seven thousand, two hundred eighteen".