13384538 has 4 divisors (see below), whose sum is σ = 20076810. Its totient is φ = 6692268.

The previous prime is 13384513. The next prime is 13384561. The reversal of 13384538 is 83548331.

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., 11607649 + 1776889 = 3407^2 + 1333^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13384498 and 13384507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3346133 + ... + 3346136.

Almost surely, 2^13384538 is an apocalyptic number.

13384538 is a deficient number, since it is larger than the sum of its proper divisors (6692272).

13384538 is an equidigital number, since it uses as much as digits as its factorization.

13384538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6692271.

The product of its digits is 34560, while the sum is 35.

The square root of 13384538 is about 3658.4884857001. The cubic root of 13384538 is about 237.4293817745.

It can be divided in two parts, 13 and 384538, that multiplied together give a palindrome (4998994).

The spelling of 13384538 in words is "thirteen million, three hundred eighty-four thousand, five hundred thirty-eight".