13829138 has 4 divisors (see below), whose sum is σ = 20743710. Its totient is φ = 6914568.

The previous prime is 13829129. The next prime is 13829149. The reversal of 13829138 is 83192831.

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., 13300609 + 528529 = 3647^2 + 727^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13829098 and 13829107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3457283 + ... + 3457286.

Almost surely, 2^13829138 is an apocalyptic number.

13829138 is a deficient number, since it is larger than the sum of its proper divisors (6914572).

13829138 is an equidigital number, since it uses as much as digits as its factorization.

13829138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6914571.

The product of its digits is 10368, while the sum is 35.

The square root of 13829138 is about 3718.7548991564. The cubic root of 13829138 is about 240.0297301133.

The spelling of 13829138 in words is "thirteen million, eight hundred twenty-nine thousand, one hundred thirty-eight".