2228218 has 16 divisors (see below), whose sum is σ = 3499776. Its totient is φ = 1062720.

The previous prime is 2228209. The next prime is 2228221. The reversal of 2228218 is 8128222.

It is a junction number, because it is equal to n+sod(n) for n = 2228192 and 2228201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4930 + ... + 5362.

It is an arithmetic number, because the mean of its divisors is an integer number (218736).

2^2228218 is an apocalyptic number.

2228218 is a deficient number, since it is larger than the sum of its proper divisors (1271558).

2228218 is a wasteful number, since it uses less digits than its factorization.

2228218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its digits is 1024, while the sum is 25.

The square root of 2228218 is about 1492.7216753300. The cubic root of 2228218 is about 130.6128460262.

The spelling of 2228218 in words is "two million, two hundred twenty-eight thousand, two hundred eighteen".