831939242 has 8 divisors (see below), whose sum is σ = 1250752800. Its totient is φ = 415021644.

The previous prime is 831939197. The next prime is 831939271. The reversal of 831939242 is 242939138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 831939242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472892 + ... + 474647.

It is an arithmetic number, because the mean of its divisors is an integer number (156344100).

Almost surely, 2^831939242 is an apocalyptic number.

831939242 is a deficient number, since it is larger than the sum of its proper divisors (418813558).

831939242 is a wasteful number, since it uses less digits than its factorization.

831939242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947980.

The product of its digits is 93312, while the sum is 41.

The square root of 831939242 is about 28843.3569821545. The cubic root of 831939242 is about 940.5109799167.

The spelling of 831939242 in words is "eight hundred thirty-one million, nine hundred thirty-nine thousand, two hundred forty-two".