385808219 has 4 divisors (see below), whose sum is σ = 385851720. Its totient is φ = 385764720.

The previous prime is 385808201. The next prime is 385808221. The reversal of 385808219 is 912808583.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 912808583 = 19 ⋅48042557.

It is a cyclic number.

It is not a de Polignac number, because 385808219 - 2⁸ = 385807963 is a prime.

It is a super-2 number, since 2×385808219² = 297695963695903922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385808219.

It is not an unprimeable number, because it can be changed into a prime (385808239) 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, 3137 + ... + 27954.

It is an arithmetic number, because the mean of its divisors is an integer number (96462930).

Almost surely, 2^385808219 is an apocalyptic number.

385808219 is a deficient number, since it is larger than the sum of its proper divisors (43501).

385808219 is a wasteful number, since it uses less digits than its factorization.

385808219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43500.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 385808219 is about 19642.0014000610. The cubic root of 385808219 is about 727.9873371333.

The spelling of 385808219 in words is "three hundred eighty-five million, eight hundred eight thousand, two hundred nineteen".