285441 has 12 divisors (see below), whose sum is σ = 412848. Its totient is φ = 175344.

The previous prime is 285433. The next prime is 285451. The reversal of 285441 is 144582.

It is not a de Polignac number, because 285441 - 2³ = 285433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226 + ... + 788.

It is an arithmetic number, because the mean of its divisors is an integer number (34404).

2²⁸⁵⁴⁴¹ is an apocalyptic number.

It is an amenable number.

285441 is a deficient number, since it is larger than the sum of its proper divisors (127407).

285441 is a wasteful number, since it uses less digits than its factorization.

285441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 579 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 285441 is about 534.2667872889. The cubic root of 285441 is about 65.8423694624.

The spelling of 285441 in words is "two hundred eighty-five thousand, four hundred forty-one".