13308433 has 4 divisors (see below), whose sum is σ = 14091300. Its totient is φ = 12525568.

The previous prime is 13308409. The next prime is 13308439. The reversal of 13308433 is 33480331.

13308433 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10291264 + 3017169 = 3208^2 + 1737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13308433 is a prime.

It is a super-2 number, since 2×13308433² = 354228777830978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13308398 and 13308407.

It is not an unprimeable number, because it can be changed into a prime (13308439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391408 + ... + 391441.

It is an arithmetic number, because the mean of its divisors is an integer number (3522825).

Almost surely, 2^13308433 is an apocalyptic number.

It is an amenable number.

13308433 is a deficient number, since it is larger than the sum of its proper divisors (782867).

13308433 is an equidigital number, since it uses as much as digits as its factorization.

13308433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782866.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 13308433 is about 3648.0725047619. The cubic root of 13308433 is about 236.9785152653.

Adding to 13308433 its reverse (33480331), we get a palindrome (46788764).

The spelling of 13308433 in words is "thirteen million, three hundred eight thousand, four hundred thirty-three".