840838846 has 8 divisors (see below), whose sum is σ = 1265715864. Its totient is φ = 418933560.

The previous prime is 840838841. The next prime is 840838877. The reversal of 840838846 is 648838048.

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

It is a super-2 number, since 2×840838846² = 1414019929885223432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 840838846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840838841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742225 + ... + 743356.

It is an arithmetic number, because the mean of its divisors is an integer number (158214483).

Almost surely, 2^840838846 is an apocalyptic number.

840838846 is a deficient number, since it is larger than the sum of its proper divisors (424877018).

840838846 is a wasteful number, since it uses less digits than its factorization.

840838846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485866.

The product of its (nonzero) digits is 1179648, while the sum is 49.

The square root of 840838846 is about 28997.2213496397. The cubic root of 840838846 is about 943.8527724226.

It can be divided in two parts, 84083 and 8846, that added together give a palindrome (92929).

The spelling of 840838846 in words is "eight hundred forty million, eight hundred thirty-eight thousand, eight hundred forty-six".