831312480 has 96 divisors (see below), whose sum is σ = 2642824800. Its totient is φ = 219635712.

The previous prime is 831312467. The next prime is 831312487. The reversal of 831312480 is 84213138.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831312487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44376 + ... + 60264.

It is an arithmetic number, because the mean of its divisors is an integer number (27529425).

Almost surely, 2^831312480 is an apocalyptic number.

831312480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 831312480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321412400).

831312480 is an abundant number, since it is smaller than the sum of its proper divisors (1811512320).

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

831312480 is a wasteful number, since it uses less digits than its factorization.

831312480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16016 (or 16008 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 831312480 is about 28832.4900069349. The cubic root of 831312480 is about 940.2747348453.

The spelling of 831312480 in words is "eight hundred thirty-one million, three hundred twelve thousand, four hundred eighty".