285044 has 6 divisors (see below), whose sum is σ = 498834. Its totient is φ = 142520.

The previous prime is 285031. The next prime is 285049. The reversal of 285044 is 440582.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 44944 = 490^2 + 212^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 285044.

It is not an unprimeable number, because it can be changed into a prime (285049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35627 + ... + 35634.

It is an arithmetic number, because the mean of its divisors is an integer number (83139).

2²⁸⁵⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

285044 is a deficient number, since it is larger than the sum of its proper divisors (213790).

285044 is a wasteful number, since it uses less digits than its factorization.

285044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71265 (or 71263 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 285044 is about 533.8951207868. The cubic root of 285044 is about 65.8118301115.

The spelling of 285044 in words is "two hundred eighty-five thousand, forty-four".