13320216 has 192 divisors, whose sum is σ = 47174400. Its totient is φ = 3297024.

The previous prime is 13320191. The next prime is 13320217. The reversal of 13320216 is 61202331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124435 + ... + 124541.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

Almost surely, 2^13320216 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 13320216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23587200).

13320216 is an abundant number, since it is smaller than the sum of its proper divisors (33854184).

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

13320216 is a wasteful number, since it uses less digits than its factorization.

13320216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 13320216 is about 3649.6871098767. The cubic root of 13320216 is about 237.0484331929.

Adding to 13320216 its reverse (61202331), we get a palindrome (74522547).

The spelling of 13320216 in words is "thirteen million, three hundred twenty thousand, two hundred sixteen".