13239306 has 48 divisors (see below), whose sum is σ = 30303936. Its totient is φ = 4169088.

The previous prime is 13239301. The next prime is 13239323. The reversal of 13239306 is 60393231.

It is a self number, because there is not a number n which added to its sum of digits gives 13239306.

It is not an unprimeable number, because it can be changed into a prime (13239301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46641 + ... + 46923.

It is an arithmetic number, because the mean of its divisors is an integer number (631332).

Almost surely, 2^13239306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13239306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15151968).

13239306 is an abundant number, since it is smaller than the sum of its proper divisors (17064630).

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

13239306 is a wasteful number, since it uses less digits than its factorization.

13239306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 13239306 is about 3638.5857142577. The cubic root of 13239306 is about 236.5674961964.

The spelling of 13239306 in words is "thirteen million, two hundred thirty-nine thousand, three hundred six".