13438375 has 8 divisors (see below), whose sum is σ = 16771248. Its totient is φ = 10750600.

The previous prime is 13438367. The next prime is 13438387. The reversal of 13438375 is 57383431.

It is not a de Polignac number, because 13438375 - 2³ = 13438367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13438375.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 53629 + ... + 53878.

It is an arithmetic number, because the mean of its divisors is an integer number (2096406).

Almost surely, 2^13438375 is an apocalyptic number.

13438375 is a deficient number, since it is larger than the sum of its proper divisors (3332873).

13438375 is an equidigital number, since it uses as much as digits as its factorization.

13438375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107522 (or 107512 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 13438375 is about 3665.8389217204. The cubic root of 13438375 is about 237.7472955089.

The spelling of 13438375 in words is "thirteen million, four hundred thirty-eight thousand, three hundred seventy-five".