285078 has 8 divisors (see below), whose sum is σ = 570168. Its totient is φ = 95024.

The previous prime is 285071. The next prime is 285079. The reversal of 285078 is 870582.

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

285078 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285071) 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, 23751 + ... + 23762.

It is an arithmetic number, because the mean of its divisors is an integer number (71271).

2²⁸⁵⁰⁷⁸ is an apocalyptic number.

285078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285078 is a wasteful number, since it uses less digits than its factorization.

285078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47518.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 285078 is about 533.9269612971. The cubic root of 285078 is about 65.8144466821.

The spelling of 285078 in words is "two hundred eighty-five thousand, seventy-eight".