842056816 has 20 divisors (see below), whose sum is σ = 1638616600. Its totient is φ = 419188032.

The previous prime is 842056807. The next prime is 842056819. The reversal of 842056816 is 618650248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842056819) 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, 111246 + ... + 118573.

It is an arithmetic number, because the mean of its divisors is an integer number (81930830).

Almost surely, 2^842056816 is an apocalyptic number.

It is an amenable number.

842056816 is a deficient number, since it is larger than the sum of its proper divisors (796559784).

842056816 is a wasteful number, since it uses less digits than its factorization.

842056816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230056 (or 230050 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 842056816 is about 29018.2152449113. The cubic root of 842056816 is about 944.3082817229.

The spelling of 842056816 in words is "eight hundred forty-two million, fifty-six thousand, eight hundred sixteen".