13229316 has 36 divisors (see below), whose sum is σ = 33824700. Its totient is φ = 4359168.

The previous prime is 13229311. The next prime is 13229323. The reversal of 13229316 is 61392231.

It can be written as a sum of positive squares in 2 ways, for example, as 4796100 + 8433216 = 2190^2 + 2904^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 13229316.

It is not an unprimeable number, because it can be changed into a prime (13229311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1140 + ... + 5268.

It is an arithmetic number, because the mean of its divisors is an integer number (939575).

Almost surely, 2^13229316 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 13229316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16912350).

13229316 is an abundant number, since it is smaller than the sum of its proper divisors (20595384).

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

13229316 is a wasteful number, since it uses less digits than its factorization.

13229316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228 (or 4223 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 13229316 is about 3637.2126690640. The cubic root of 13229316 is about 236.5079788782.

The spelling of 13229316 in words is "thirteen million, two hundred twenty-nine thousand, three hundred sixteen".