840506842 has 8 divisors (see below), whose sum is σ = 1440868896. Its totient is φ = 360217212.

The previous prime is 840506839. The next prime is 840506881. The reversal of 840506842 is 248605048.

840506842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30018088 + ... + 30018115.

It is an arithmetic number, because the mean of its divisors is an integer number (180108612).

Almost surely, 2^840506842 is an apocalyptic number.

840506842 is a deficient number, since it is larger than the sum of its proper divisors (600362054).

840506842 is a wasteful number, since it uses less digits than its factorization.

840506842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60036212.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 840506842 is about 28991.4960290082. The cubic root of 840506842 is about 943.7285297690.

The spelling of 840506842 in words is "eight hundred forty million, five hundred six thousand, eight hundred forty-two".