13838638 has 8 divisors (see below), whose sum is σ = 22645080. Its totient is φ = 6290280.

The previous prime is 13838621. The next prime is 13838641. The reversal of 13838638 is 83683831.

13838638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13838638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314493 + ... + 314536.

It is an arithmetic number, because the mean of its divisors is an integer number (2830635).

Almost surely, 2^13838638 is an apocalyptic number.

13838638 is a deficient number, since it is larger than the sum of its proper divisors (8806442).

13838638 is a wasteful number, since it uses less digits than its factorization.

13838638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629042.

The product of its digits is 82944, while the sum is 40.

The square root of 13838638 is about 3720.0319891098. The cubic root of 13838638 is about 240.0846807662.

The spelling of 13838638 in words is "thirteen million, eight hundred thirty-eight thousand, six hundred thirty-eight".