13818385 has 8 divisors (see below), whose sum is σ = 18950976. Its totient is φ = 9475440.

The previous prime is 13818383. The next prime is 13818397. The reversal of 13818385 is 58381831.

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

It is not a de Polignac number, because 13818385 - 2¹ = 13818383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13818383) 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 7 ways as a sum of consecutive naturals, for example, 197371 + ... + 197440.

It is an arithmetic number, because the mean of its divisors is an integer number (2368872).

Almost surely, 2^13818385 is an apocalyptic number.

It is an amenable number.

13818385 is a deficient number, since it is larger than the sum of its proper divisors (5132591).

13818385 is an equidigital number, since it uses as much as digits as its factorization.

13818385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394823.

The product of its digits is 23040, while the sum is 37.

The square root of 13818385 is about 3717.3088383937. The cubic root of 13818385 is about 239.9675013866.

The spelling of 13818385 in words is "thirteen million, eight hundred eighteen thousand, three hundred eighty-five".