282990 has 16 divisors (see below), whose sum is σ = 679248. Its totient is φ = 75456.

The previous prime is 282977. The next prime is 282991. The reversal of 282990 is 99282.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 9433 = 282990 / (2 + 8 + 2 + 9 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282991) 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, 4687 + ... + 4746.

It is an arithmetic number, because the mean of its divisors is an integer number (42453).

2²⁸²⁹⁹⁰ is an apocalyptic number.

282990 is an abundant number, since it is smaller than the sum of its proper divisors (396258).

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

282990 is a wasteful number, since it uses less digits than its factorization.

282990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9443.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 282990 is about 531.9680441530. The cubic root of 282990 is about 65.6533709529.

Adding to 282990 its product of nonzero digits (2592), we get a palindrome (285582).

The spelling of 282990 in words is "two hundred eighty-two thousand, nine hundred ninety".