812282 has 8 divisors (see below), whose sum is σ = 1222452. Its totient is φ = 404800.

The previous prime is 812281. The next prime is 812297. The reversal of 812282 is 282218.

It can be written as a sum of positive squares in 2 ways, for example, as 755161 + 57121 = 869^2 + 239^2 .

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

It is not an unprimeable number, because it can be changed into a prime (812281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482 + ... + 1362.

2⁸¹²²⁸² is an apocalyptic number.

812282 is a deficient number, since it is larger than the sum of its proper divisors (410170).

812282 is a wasteful number, since it uses less digits than its factorization.

812282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344.

The product of its digits is 512, while the sum is 23.

The square root of 812282 is about 901.2668861109. The cubic root of 812282 is about 93.3044326618.

The spelling of 812282 in words is "eight hundred twelve thousand, two hundred eighty-two".