282340809 has 15 divisors (see below), whose sum is σ = 421994397. Its totient is φ = 188126388.

The previous prime is 282340787. The next prime is 282340813. The reversal of 282340809 is 908043282.

The square root of 282340809 is 16803.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 282340809 - 2⁹ = 282340297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (282340889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 150294 + ... + 152160.

Almost surely, 2^282340809 is an apocalyptic number.

282340809 is the 16803-rd square number.

282340809 is the 8402-nd centered octagonal number.

It is an amenable number.

282340809 is a deficient number, since it is larger than the sum of its proper divisors (139653588).

282340809 is an frugal number, since it uses more digits than its factorization.

282340809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The cubic root of 282340809 is about 656.0312864627.

Multiplying 282340809 by its sum of digits (36), we get a square (10164269124 = 100818²).

The spelling of 282340809 in words is "two hundred eighty-two million, three hundred forty thousand, eight hundred nine".