821488282 has 16 divisors (see below), whose sum is σ = 1306363392. Its totient is φ = 386750160.

The previous prime is 821488279. The next prime is 821488289. The reversal of 821488282 is 282884128.

It is not an unprimeable number, because it can be changed into a prime (821488289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176758 + ... + 181345.

It is an arithmetic number, because the mean of its divisors is an integer number (81647712).

Almost surely, 2^821488282 is an apocalyptic number.

821488282 is a deficient number, since it is larger than the sum of its proper divisors (484875110).

821488282 is a wasteful number, since it uses less digits than its factorization.

821488282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358173.

The product of its digits is 131072, while the sum is 43.

The square root of 821488282 is about 28661.6168769314. The cubic root of 821488282 is about 936.5560872711.

The spelling of 821488282 in words is "eight hundred twenty-one million, four hundred eighty-eight thousand, two hundred eighty-two".