384578 has 8 divisors (see below), whose sum is σ = 592572. Its totient is φ = 187056.

The previous prime is 384577. The next prime is 384581. The reversal of 384578 is 875483.

It can be written as a sum of positive squares in 2 ways, for example, as 368449 + 16129 = 607^2 + 127^2 .

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

It is not an unprimeable number, because it can be changed into a prime (384577) 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, 2525 + ... + 2672.

2³⁸⁴⁵⁷⁸ is an apocalyptic number.

384578 is a deficient number, since it is larger than the sum of its proper divisors (207994).

384578 is a wasteful number, since it uses less digits than its factorization.

384578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236.

The product of its digits is 26880, while the sum is 35.

The square root of 384578 is about 620.1435317731. The cubic root of 384578 is about 72.7212740317.

The spelling of 384578 in words is "three hundred eighty-four thousand, five hundred seventy-eight".