285484 has 12 divisors (see below), whose sum is σ = 504000. Its totient is φ = 141488.

The previous prime is 285473. The next prime is 285497. The reversal of 285484 is 484582.

It is a super-2 number, since 2×285484² = 163002228512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357 + ... + 835.

It is an arithmetic number, because the mean of its divisors is an integer number (42000).

2²⁸⁵⁴⁸⁴ is an apocalyptic number.

It is an amenable number.

285484 is a deficient number, since it is larger than the sum of its proper divisors (218516).

285484 is a wasteful number, since it uses less digits than its factorization.

285484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 630 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

The square root of 285484 is about 534.3070278407. The cubic root of 285484 is about 65.8456755510.

The spelling of 285484 in words is "two hundred eighty-five thousand, four hundred eighty-four".