839287242 has 48 divisors (see below), whose sum is σ = 1894793472. Its totient is φ = 268188480.

The previous prime is 839287219. The next prime is 839287259. The reversal of 839287242 is 242782938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52678 + ... + 66734.

It is an arithmetic number, because the mean of its divisors is an integer number (39474864).

Almost surely, 2^839287242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 839287242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947396736).

839287242 is an abundant number, since it is smaller than the sum of its proper divisors (1055506230).

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

839287242 is a wasteful number, since it uses less digits than its factorization.

839287242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14203 (or 14200 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 839287242 is about 28970.4546391664. The cubic root of 839287242 is about 943.2718495834.

The spelling of 839287242 in words is "eight hundred thirty-nine million, two hundred eighty-seven thousand, two hundred forty-two".