2228216 has 16 divisors (see below), whose sum is σ = 4200000. Its totient is φ = 1108224.

The previous prime is 2228209. The next prime is 2228221. The reversal of 2228216 is 6128222.

It is a junction number, because it is equal to n+sod(n) for n = 2228191 and 2228200.

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, 1160 + ... + 2408.

It is an arithmetic number, because the mean of its divisors is an integer number (262500).

2^2228216 is an apocalyptic number.

It is an amenable number.

2228216 is a deficient number, since it is larger than the sum of its proper divisors (1971784).

2228216 is a wasteful number, since it uses less digits than its factorization.

2228216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478 (or 1474 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 2228216 is about 1492.7210054126. The cubic root of 2228216 is about 130.6128069478.

The spelling of 2228216 in words is "two million, two hundred twenty-eight thousand, two hundred sixteen".