384218 has 8 divisors (see below), whose sum is σ = 606720. Its totient is φ = 181980.

The previous prime is 384203. The next prime is 384227. The reversal of 384218 is 812483.

384218 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is an unprimeable number.

384218 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5018 + ... + 5093.

It is an arithmetic number, because the mean of its divisors is an integer number (75840).

2³⁸⁴²¹⁸ is an apocalyptic number.

384218 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

384218 is a deficient number, since it is larger than the sum of its proper divisors (222502).

384218 is a wasteful number, since it uses less digits than its factorization.

384218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132.

The product of its digits is 1536, while the sum is 26.

The square root of 384218 is about 619.8532084292. The cubic root of 384218 is about 72.6985757046.

The spelling of 384218 in words is "three hundred eighty-four thousand, two hundred eighteen".