13228369 has 16 divisors (see below), whose sum is σ = 16617600. Its totient is φ = 10229760.

The previous prime is 13228367. The next prime is 13228409. The reversal of 13228369 is 96382231.

It is a happy number.

13228369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13228369 - 2¹ = 13228367 is a prime.

It is a super-2 number, since 2×13228369² = 349979492800322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13228361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10897 + ... + 12049.

It is an arithmetic number, because the mean of its divisors is an integer number (1038600).

Almost surely, 2^13228369 is an apocalyptic number.

It is an amenable number.

13228369 is a deficient number, since it is larger than the sum of its proper divisors (3389231).

13228369 is a wasteful number, since it uses less digits than its factorization.

13228369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320.

The product of its digits is 15552, while the sum is 34.

The square root of 13228369 is about 3637.0824846297. The cubic root of 13228369 is about 236.5023353917.

The spelling of 13228369 in words is "thirteen million, two hundred twenty-eight thousand, three hundred sixty-nine".