840468528 has 160 divisors (see below), whose sum is σ = 2519838720. Its totient is φ = 267909120.

The previous prime is 840468521. The next prime is 840468529. The reversal of 840468528 is 825864048.

840468528 is a `hidden beast` number, since 84 + 0 + 46 + 8 + 528 = 666.

It is not an unprimeable number, because it can be changed into a prime (840468521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1298701 + ... + 1299347.

It is an arithmetic number, because the mean of its divisors is an integer number (15748992).

Almost surely, 2^840468528 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 840468528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259919360).

840468528 is an abundant number, since it is smaller than the sum of its proper divisors (1679370192).

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

840468528 is a wasteful number, since it uses less digits than its factorization.

840468528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 840468528 is about 28990.8352415035. The cubic root of 840468528 is about 943.7141897849.

The spelling of 840468528 in words is "eight hundred forty million, four hundred sixty-eight thousand, five hundred twenty-eight".