839492942 has 16 divisors (see below), whose sum is σ = 1266548400. Its totient is φ = 417316032.

The previous prime is 839492923. The next prime is 839492971. The reversal of 839492942 is 249294938.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541184 + ... + 542732.

It is an arithmetic number, because the mean of its divisors is an integer number (79159275).

Almost surely, 2^839492942 is an apocalyptic number.

839492942 is a deficient number, since it is larger than the sum of its proper divisors (427055458).

839492942 is a wasteful number, since it uses less digits than its factorization.

839492942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947.

The product of its digits is 1119744, while the sum is 50.

The square root of 839492942 is about 28974.0045903220. The cubic root of 839492942 is about 943.3489051135.

The spelling of 839492942 in words is "eight hundred thirty-nine million, four hundred ninety-two thousand, nine hundred forty-two".