3216228 has 48 divisors (see below), whose sum is σ = 8042496. Its totient is φ = 997920.

The previous prime is 3216221. The next prime is 3216233. The reversal of 3216228 is 8226123.

It is a d-powerful number, because it can be written as 3⁹ + 2¹² + 1 + 6⁶ + 2²⁰ + 2²¹ + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 3216198 and 3216207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11733 + ... + 12003.

It is an arithmetic number, because the mean of its divisors is an integer number (167552).

Almost surely, 2^3216228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3216228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4021248).

3216228 is an abundant number, since it is smaller than the sum of its proper divisors (4826268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3216228 is a wasteful number, since it uses less digits than its factorization.

3216228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 342 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 3216228 is about 1793.3845098026. The cubic root of 3216228 is about 147.6099419718.

The spelling of 3216228 in words is "three million, two hundred sixteen thousand, two hundred twenty-eight".