3331216 has 40 divisors (see below), whose sum is σ = 7539200. Its totient is φ = 1425312.

The previous prime is 3331189. The next prime is 3331217. The reversal of 3331216 is 6121333.

It is a super-2 number, since 2×3331216² = 22194000077312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3331193 and 3331202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3331217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5185 + ... + 5791.

It is an arithmetic number, because the mean of its divisors is an integer number (188480).

Almost surely, 2^3331216 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 3331216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3769600).

3331216 is an abundant number, since it is smaller than the sum of its proper divisors (4207984).

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

3331216 is an equidigital number, since it uses as much as digits as its factorization.

3331216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 616 counting only the distinct ones).

The product of its digits is 324, while the sum is 19.

The square root of 3331216 is about 1825.1619106260. The cubic root of 3331216 is about 149.3485227605.

Adding to 3331216 its reverse (6121333), we get a palindrome (9452549).

The spelling of 3331216 in words is "three million, three hundred thirty-one thousand, two hundred sixteen".