840216044 has 12 divisors (see below), whose sum is σ = 1504573224. Its totient is φ = 410337984.

The previous prime is 840216031. The next prime is 840216061. The reversal of 840216044 is 440612048.

840216044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 840215998 and 840216016.

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, 2442317 + ... + 2442660.

It is an arithmetic number, because the mean of its divisors is an integer number (125381102).

Almost surely, 2^840216044 is an apocalyptic number.

It is an amenable number.

840216044 is a deficient number, since it is larger than the sum of its proper divisors (664357180).

840216044 is a wasteful number, since it uses less digits than its factorization.

840216044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4885024 (or 4885022 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 840216044 is about 28986.4803658533. The cubic root of 840216044 is about 943.6196803578.

The spelling of 840216044 in words is "eight hundred forty million, two hundred sixteen thousand, forty-four".