383818 has 8 divisors (see below), whose sum is σ = 589248. Its totient is φ = 187404.

The previous prime is 383813. The next prime is 383821. The reversal of 383818 is 818383.

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

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 15.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 383818.

It is not an unprimeable number, because it can be changed into a prime (383813) 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, 2146 + ... + 2317.

It is an arithmetic number, because the mean of its divisors is an integer number (73656).

2³⁸³⁸¹⁸ is an apocalyptic number.

383818 is a deficient number, since it is larger than the sum of its proper divisors (205430).

383818 is a wasteful number, since it uses less digits than its factorization.

383818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508.

The product of its digits is 4608, while the sum is 31.

The square root of 383818 is about 619.5304673702. The cubic root of 383818 is about 72.6733387060.

The spelling of 383818 in words is "three hundred eighty-three thousand, eight hundred eighteen".