831242988 has 72 divisors (see below), whose sum is σ = 2126124000. Its totient is φ = 273816576.

The previous prime is 831242969. The next prime is 831243013. The reversal of 831242988 is 889242138.

831242988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1893273 + ... + 1893711.

It is an arithmetic number, because the mean of its divisors is an integer number (29529500).

Almost surely, 2^831242988 is an apocalyptic number.

It is an amenable number.

831242988 is an abundant number, since it is smaller than the sum of its proper divisors (1294881012).

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

831242988 is a wasteful number, since it uses less digits than its factorization.

831242988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 946 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 831242988 is about 28831.2848829184. The cubic root of 831242988 is about 940.2485339504.

The spelling of 831242988 in words is "eight hundred thirty-one million, two hundred forty-two thousand, nine hundred eighty-eight".