13875438 has 8 divisors (see below), whose sum is σ = 27750888. Its totient is φ = 4625144.

The previous prime is 13875437. The next prime is 13875457. The reversal of 13875438 is 83457831.

It is a sphenic number, since it is the product of 3 distinct primes.

13875438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13875396 and 13875405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13875431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156281 + ... + 1156292.

It is an arithmetic number, because the mean of its divisors is an integer number (3468861).

Almost surely, 2^13875438 is an apocalyptic number.

13875438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13875438 is a wasteful number, since it uses less digits than its factorization.

13875438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312578.

The product of its digits is 80640, while the sum is 39.

The square root of 13875438 is about 3724.9748992443. The cubic root of 13875438 is about 240.2973051659.

The spelling of 13875438 in words is "thirteen million, eight hundred seventy-five thousand, four hundred thirty-eight".