840485682 has 12 divisors (see below), whose sum is σ = 1821052350. Its totient is φ = 280161888.

The previous prime is 840485677. The next prime is 840485683. The reversal of 840485682 is 286584048.

840485682 is a `hidden beast` number, since 8 + 40 + 48 + 568 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 582208641 + 258277041 = 24129^2 + 16071^2 .

It is not an unprimeable number, because it can be changed into a prime (840485683) 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 5 ways as a sum of consecutive naturals, for example, 23346807 + ... + 23346842.

Almost surely, 2^840485682 is an apocalyptic number.

840485682 is an abundant number, since it is smaller than the sum of its proper divisors (980566668).

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

840485682 is a wasteful number, since it uses less digits than its factorization.

840485682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46693657 (or 46693654 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 840485682 is about 28991.1310921116. The cubic root of 840485682 is about 943.7206101574.

The spelling of 840485682 in words is "eight hundred forty million, four hundred eighty-five thousand, six hundred eighty-two".