840075916 has 12 divisors (see below), whose sum is σ = 1475991720. Its totient is φ = 418364000.

The previous prime is 840075911. The next prime is 840075919. The reversal of 840075916 is 619570048.

It is not an unprimeable number, because it can be changed into a prime (840075911) 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, 417361 + ... + 419368.

It is an arithmetic number, because the mean of its divisors is an integer number (122999310).

Almost surely, 2^840075916 is an apocalyptic number.

It is an amenable number.

840075916 is a deficient number, since it is larger than the sum of its proper divisors (635915804).

840075916 is a wasteful number, since it uses less digits than its factorization.

840075916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836984 (or 836982 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 840075916 is about 28984.0631382144. The cubic root of 840075916 is about 943.5672196877.

The spelling of 840075916 in words is "eight hundred forty million, seventy-five thousand, nine hundred sixteen".