13389918 has 8 divisors (see below), whose sum is σ = 26779848. Its totient is φ = 4463304.

The previous prime is 13389913. The next prime is 13389919. The reversal of 13389918 is 81998331.

It is a happy number.

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

13389918 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 13389918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13389911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115821 + ... + 1115832.

It is an arithmetic number, because the mean of its divisors is an integer number (3347481).

Almost surely, 2^13389918 is an apocalyptic number.

13389918 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.

13389918 is a wasteful number, since it uses less digits than its factorization.

13389918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231658.

The product of its digits is 46656, while the sum is 42.

The square root of 13389918 is about 3659.2236881612. The cubic root of 13389918 is about 237.4611895955.

The spelling of 13389918 in words is "thirteen million, three hundred eighty-nine thousand, nine hundred eighteen".