4228216 has 8 divisors (see below), whose sum is σ = 7927920. Its totient is φ = 2114104.

The previous prime is 4228199. The next prime is 4228243. The reversal of 4228216 is 6128224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264256 + ... + 264271.

It is an arithmetic number, because the mean of its divisors is an integer number (990990).

Almost surely, 2^4228216 is an apocalyptic number.

It is an amenable number.

4228216 is a deficient number, since it is larger than the sum of its proper divisors (3699704).

4228216 is a wasteful number, since it uses less digits than its factorization.

4228216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528533 (or 528529 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 4228216 is about 2056.2626291405. The cubic root of 4228216 is about 161.7033640905.

It can be divided in two parts, 4228 and 216, that added together give a palindrome (4444).

The spelling of 4228216 in words is "four million, two hundred twenty-eight thousand, two hundred sixteen".