840812272 has 20 divisors (see below), whose sum is σ = 1673103976. Its totient is φ = 409043520.

The previous prime is 840812267. The next prime is 840812303. The reversal of 840812272 is 272218048.

840812272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 709554 + ... + 710737.

Almost surely, 2^840812272 is an apocalyptic number.

It is an amenable number.

840812272 is a deficient number, since it is larger than the sum of its proper divisors (832291704).

840812272 is a wasteful number, since it uses less digits than its factorization.

840812272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420336 (or 1420330 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 840812272 is about 28996.7631297012. The cubic root of 840812272 is about 943.8428290952.

The spelling of 840812272 in words is "eight hundred forty million, eight hundred twelve thousand, two hundred seventy-two".