820470282 has 16 divisors (see below), whose sum is σ = 1644505632. Its totient is φ = 272895920.

The previous prime is 820470251. The next prime is 820470347. The reversal of 820470282 is 282074028.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 145548 + ... + 151079.

It is an arithmetic number, because the mean of its divisors is an integer number (102781602).

Almost surely, 2^820470282 is an apocalyptic number.

820470282 is an abundant number, since it is smaller than the sum of its proper divisors (824035350).

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

820470282 is a wasteful number, since it uses less digits than its factorization.

820470282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297093.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 820470282 is about 28643.8524294481. The cubic root of 820470282 is about 936.1690628030.

The spelling of 820470282 in words is "eight hundred twenty million, four hundred seventy thousand, two hundred eighty-two".