831351042 has 24 divisors (see below), whose sum is σ = 1896064560. Its totient is φ = 262531800.

The previous prime is 831351041. The next prime is 831351043. The reversal of 831351042 is 240153138.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (831351041) and next prime (831351043).

It is a super-2 number, since 2×831351042² = 1382289110068971528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 831350997 and 831351015.

It is not an unprimeable number, because it can be changed into a prime (831351041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1215084 + ... + 1215767.

It is an arithmetic number, because the mean of its divisors is an integer number (79002690).

Almost surely, 2^831351042 is an apocalyptic number.

831351042 is an abundant number, since it is smaller than the sum of its proper divisors (1064713518).

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

831351042 is a wasteful number, since it uses less digits than its factorization.

831351042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430878 (or 2430875 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 831351042 is about 28833.1587239414. The cubic root of 831351042 is about 940.2892734271.

The spelling of 831351042 in words is "eight hundred thirty-one million, three hundred fifty-one thousand, forty-two".