13344138 has 12 divisors (see below), whose sum is σ = 28912338. Its totient is φ = 4448040.

The previous prime is 13344131. The next prime is 13344157. The reversal of 13344138 is 83144331.

It can be written as a sum of positive squares in only one way, i.e., 10093329 + 3250809 = 3177^2 + 1803^2 .

It is not an unprimeable number, because it can be changed into a prime (13344131) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 370653 + ... + 370688.

Almost surely, 2^13344138 is an apocalyptic number.

13344138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13344138 is an abundant number, since it is smaller than the sum of its proper divisors (15568200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13344138 is a wasteful number, since it uses less digits than its factorization.

13344138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741349 (or 741346 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 13344138 is about 3652.9629070112. The cubic root of 13344138 is about 237.1902547499.

Adding to 13344138 its reverse (83144331), we get a palindrome (96488469).

The spelling of 13344138 in words is "thirteen million, three hundred forty-four thousand, one hundred thirty-eight".