284245 has 8 divisors (see below), whose sum is σ = 367416. Its totient is φ = 209856.

The previous prime is 284243. The next prime is 284261. The reversal of 284245 is 542482.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7569 + 276676 = 87^2 + 526^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 284245 - 2¹ = 284243 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 8³ + 2¹¹ + 4⁷ + 4⁹ + 5⁵ .

It is a Duffinian number.

284245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2122 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (45927).

2²⁸⁴²⁴⁵ is an apocalyptic number.

It is an amenable number.

284245 is a deficient number, since it is larger than the sum of its proper divisors (83171).

284245 is a wasteful number, since it uses less digits than its factorization.

284245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391.

The product of its digits is 2560, while the sum is 25.

The square root of 284245 is about 533.1463213790. The cubic root of 284245 is about 65.7502807122.

It can be divided in two parts, 284 and 245, that added together give a square (529 = 23²).

The spelling of 284245 in words is "two hundred eighty-four thousand, two hundred forty-five".