13338638 has 8 divisors (see below), whose sum is σ = 20069400. Its totient is φ = 6648840.

The previous prime is 13338631. The next prime is 13338641. The reversal of 13338638 is 83683331.

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

It is a junction number, because it is equal to n+sod(n) for n = 13338598 and 13338607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13338631) 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, 9413 + ... + 10736.

It is an arithmetic number, because the mean of its divisors is an integer number (2508675).

Almost surely, 2^13338638 is an apocalyptic number.

13338638 is a deficient number, since it is larger than the sum of its proper divisors (6730762).

13338638 is a wasteful number, since it uses less digits than its factorization.

13338638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20482.

The product of its digits is 31104, while the sum is 35.

The square root of 13338638 is about 3652.2100158671. The cubic root of 13338638 is about 237.1576630188.

The spelling of 13338638 in words is "thirteen million, three hundred thirty-eight thousand, six hundred thirty-eight".