384878 has 16 divisors (see below), whose sum is σ = 632016. Its totient is φ = 174720.

The previous prime is 384851. The next prime is 384889. The reversal of 384878 is 878483.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

384878 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 7 ways as a sum of consecutive naturals, for example, 2873 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (39501).

2³⁸⁴⁸⁷⁸ is an apocalyptic number.

384878 is a deficient number, since it is larger than the sum of its proper divisors (247138).

384878 is a wasteful number, since it uses less digits than its factorization.

384878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259.

The product of its digits is 43008, while the sum is 38.

The square root of 384878 is about 620.3853641085. The cubic root of 384878 is about 72.7401784862.

The spelling of 384878 in words is "three hundred eighty-four thousand, eight hundred seventy-eight".