385218219 has 4 divisors (see below), whose sum is σ = 513624296. Its totient is φ = 256812144.

The previous prime is 385218199. The next prime is 385218221. The reversal of 385218219 is 912812583.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 385218219 - 2⁷ = 385218091 is a prime.

It is a super-2 number, since 2×385218219² = 296786152499063922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385218259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64203034 + ... + 64203039.

It is an arithmetic number, because the mean of its divisors is an integer number (128406074).

Almost surely, 2^385218219 is an apocalyptic number.

385218219 is a deficient number, since it is larger than the sum of its proper divisors (128406077).

385218219 is a wasteful number, since it uses less digits than its factorization.

385218219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128406076.

The product of its digits is 34560, while the sum is 39.

The square root of 385218219 is about 19626.9768176355. The cubic root of 385218219 is about 727.6160545124.

The spelling of 385218219 in words is "three hundred eighty-five million, two hundred eighteen thousand, two hundred nineteen".