285378 has 8 divisors (see below), whose sum is σ = 570768. Its totient is φ = 95124.

The previous prime is 285377. The next prime is 285421. The reversal of 285378 is 873582.

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

285378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (285377) 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, 23776 + ... + 23787.

It is an arithmetic number, because the mean of its divisors is an integer number (71346).

2²⁸⁵³⁷⁸ is an apocalyptic number.

285378 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.

285378 is a wasteful number, since it uses less digits than its factorization.

285378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47568.

The product of its digits is 13440, while the sum is 33.

The square root of 285378 is about 534.2078247274. The cubic root of 285378 is about 65.8375250585.

The spelling of 285378 in words is "two hundred eighty-five thousand, three hundred seventy-eight".