13385918 has 64 divisors (see below), whose sum is σ = 26880000. Its totient is φ = 4953312.

The previous prime is 13385917. The next prime is 13385921. The reversal of 13385918 is 81958331.

It is a Harshad number since it is a multiple of its sum of digits (38).

Its product of digits (25920) is a multiple of the sum of its prime divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13385917) 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 31 ways as a sum of consecutive naturals, for example, 169403 + ... + 169481.

It is an arithmetic number, because the mean of its divisors is an integer number (420000).

Almost surely, 2^13385918 is an apocalyptic number.

13385918 is an abundant number, since it is smaller than the sum of its proper divisors (13494082).

13385918 is a wasteful number, since it uses less digits than its factorization.

13385918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 120 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 13385918 is about 3658.6770833185. The cubic root of 13385918 is about 237.4375414706.

The spelling of 13385918 in words is "thirteen million, three hundred eighty-five thousand, nine hundred eighteen".