13228319 has 8 divisors (see below), whose sum is σ = 14295792. Its totient is φ = 12168000.

The previous prime is 13228307. The next prime is 13228333. The reversal of 13228319 is 91382231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13228319 - 2⁸ = 13228063 is a prime.

It is a super-2 number, since 2×13228319² = 349976847131522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13228291 and 13228300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2444 + ... + 5694.

It is an arithmetic number, because the mean of its divisors is an integer number (1786974).

Almost surely, 2^13228319 is an apocalyptic number.

13228319 is a deficient number, since it is larger than the sum of its proper divisors (1067473).

13228319 is a wasteful number, since it uses less digits than its factorization.

13228319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577.

The product of its digits is 2592, while the sum is 29.

The square root of 13228319 is about 3637.0756109820. The cubic root of 13228319 is about 236.5020374176.

The spelling of 13228319 in words is "thirteen million, two hundred twenty-eight thousand, three hundred nineteen".