282540 has 48 divisors (see below), whose sum is σ = 840672. Its totient is φ = 70656.

The previous prime is 282493. The next prime is 282559. The reversal of 282540 is 45282.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 282540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (17514).

2²⁸²⁵⁴⁰ is an apocalyptic number.

282540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 282540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420336).

282540 is an abundant number, since it is smaller than the sum of its proper divisors (558132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

282540 is a wasteful number, since it uses less digits than its factorization.

282540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 282540 is about 531.5449181396. The cubic root of 282540 is about 65.6185526546.

The spelling of 282540 in words is "two hundred eighty-two thousand, five hundred forty".