13226616 has 72 divisors (see below), whose sum is σ = 38825280. Its totient is φ = 4065984.

The previous prime is 13226611. The next prime is 13226617. The reversal of 13226616 is 61662231.

13226616 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×13226616² = 349886741622912, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13226616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13226611) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11625 + ... + 12711.

It is an arithmetic number, because the mean of its divisors is an integer number (539240).

Almost surely, 2^13226616 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 13226616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19412640).

13226616 is an abundant number, since it is smaller than the sum of its proper divisors (25598664).

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

13226616 is a wasteful number, since it uses less digits than its factorization.

13226616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1105 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 13226616 is about 3636.8414867849. The cubic root of 13226616 is about 236.4918879735.

Adding to 13226616 its reverse (61662231), we get a palindrome (74888847).

The spelling of 13226616 in words is "thirteen million, two hundred twenty-six thousand, six hundred sixteen".