13858438 has 8 divisors (see below), whose sum is σ = 22677480. Its totient is φ = 6299280.

The previous prime is 13858421. The next prime is 13858447. The reversal of 13858438 is 83485831.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13858438.

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 3 ways as a sum of consecutive naturals, for example, 314943 + ... + 314986.

It is an arithmetic number, because the mean of its divisors is an integer number (2834685).

Almost surely, 2^13858438 is an apocalyptic number.

13858438 is a deficient number, since it is larger than the sum of its proper divisors (8819042).

13858438 is a wasteful number, since it uses less digits than its factorization.

13858438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629942.

The product of its digits is 92160, while the sum is 40.

The square root of 13858438 is about 3722.6923053081. The cubic root of 13858438 is about 240.1991287181.

The spelling of 13858438 in words is "thirteen million, eight hundred fifty-eight thousand, four hundred thirty-eight".