13838458 has 4 divisors (see below), whose sum is σ = 20757690. Its totient is φ = 6919228.

The previous prime is 13838453. The next prime is 13838483. The reversal of 13838458 is 85483831.

13838458 is digitally balanced in base 2, 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 only one way, i.e., 13271449 + 567009 = 3643^2 + 753^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13838458.

It is not an unprimeable number, because it can be changed into a prime (13838453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3459613 + ... + 3459616.

Almost surely, 2^13838458 is an apocalyptic number.

13838458 is a deficient number, since it is larger than the sum of its proper divisors (6919232).

13838458 is an equidigital number, since it uses as much as digits as its factorization.

13838458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6919231.

The product of its digits is 92160, while the sum is 40.

The square root of 13838458 is about 3720.0077956908. The cubic root of 13838458 is about 240.0836398297.

The spelling of 13838458 in words is "thirteen million, eight hundred thirty-eight thousand, four hundred fifty-eight".