13216304 has 10 divisors (see below), whose sum is σ = 25606620. Its totient is φ = 6608144.

The previous prime is 13216303. The next prime is 13216331. The reversal of 13216304 is 40361231.

It is not an unprimeable number, because it can be changed into a prime (13216303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412994 + ... + 413025.

It is an arithmetic number, because the mean of its divisors is an integer number (2560662).

Almost surely, 2^13216304 is an apocalyptic number.

It is an amenable number.

13216304 is a deficient number, since it is larger than the sum of its proper divisors (12390316).

13216304 is an equidigital number, since it uses as much as digits as its factorization.

13216304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826027 (or 826021 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13216304 is about 3635.4234966507. The cubic root of 13216304 is about 236.4304124760.

Adding to 13216304 its reverse (40361231), we get a palindrome (53577535).

The spelling of 13216304 in words is "thirteen million, two hundred sixteen thousand, three hundred four".