285033 has 16 divisors (see below), whose sum is σ = 444800. Its totient is φ = 162288.

The previous prime is 285031. The next prime is 285049. The reversal of 285033 is 330582.

It is not a de Polignac number, because 285033 - 2¹ = 285031 is a prime.

It is a super-2 number, since 2×285033² = 162487622178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 285033.

It is not an unprimeable number, because it can be changed into a prime (285031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891 + ... + 1167.

It is an arithmetic number, because the mean of its divisors is an integer number (27800).

2²⁸⁵⁰³³ is an apocalyptic number.

It is an amenable number.

285033 is a deficient number, since it is larger than the sum of its proper divisors (159767).

285033 is an equidigital number, since it uses as much as digits as its factorization.

285033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 285033 is about 533.8848190387. The cubic root of 285033 is about 65.8109835294.

The spelling of 285033 in words is "two hundred eighty-five thousand, thirty-three".