384306878 has 4 divisors (see below), whose sum is σ = 576460320. Its totient is φ = 192153438.

The previous prime is 384306851. The next prime is 384306889. The reversal of 384306878 is 878603483.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96076718 + ... + 96076721.

It is an arithmetic number, because the mean of its divisors is an integer number (144115080).

Almost surely, 2^384306878 is an apocalyptic number.

384306878 is a deficient number, since it is larger than the sum of its proper divisors (192153442).

384306878 is a wasteful number, since it uses less digits than its factorization.

384306878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192153441.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 384306878 is about 19603.7465296815. The cubic root of 384306878 is about 727.0418086094.

The spelling of 384306878 in words is "three hundred eighty-four million, three hundred six thousand, eight hundred seventy-eight".