13209338 has 8 divisors (see below), whose sum is σ = 20006688. Its totient is φ = 6540444.

The previous prime is 13209331. The next prime is 13209347. The reversal of 13209338 is 83390231.

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

It is a super-2 number, since 2×13209338² = 348973220796488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13209338.

It is not an unprimeable number, because it can be changed into a prime (13209331) 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, 31856 + ... + 32267.

It is an arithmetic number, because the mean of its divisors is an integer number (2500836).

Almost surely, 2^13209338 is an apocalyptic number.

13209338 is a deficient number, since it is larger than the sum of its proper divisors (6797350).

13209338 is a wasteful number, since it uses less digits than its factorization.

13209338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64228.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 13209338 is about 3634.4652976745. The cubic root of 13209338 is about 236.3888662238.

Adding to 13209338 its reverse (83390231), we get a palindrome (96599569).

The spelling of 13209338 in words is "thirteen million, two hundred nine thousand, three hundred thirty-eight".