846868440 has 128 divisors (see below), whose sum is σ = 2867270400. Its totient is φ = 198213120.

The previous prime is 846868439. The next prime is 846868459. The reversal of 846868440 is 44868648.

It is a self number, because there is not a number n which added to its sum of digits gives 846868440.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27219 + ... + 49341.

It is an arithmetic number, because the mean of its divisors is an integer number (22400550).

Almost surely, 2^846868440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 846868440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433635200).

846868440 is an abundant number, since it is smaller than the sum of its proper divisors (2020401960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

846868440 is a wasteful number, since it uses less digits than its factorization.

846868440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22177 (or 22173 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The square root of 846868440 is about 29101.0041063878. The cubic root of 846868440 is about 946.1035008116.

The spelling of 846868440 in words is "eight hundred forty-six million, eight hundred sixty-eight thousand, four hundred forty".