839142044 has 24 divisors (see below), whose sum is σ = 1588270320. Its totient is φ = 385628544.

The previous prime is 839142023. The next prime is 839142061. The reversal of 839142044 is 440241938.

It is a junction number, because it is equal to n+sod(n) for n = 839141995 and 839142013.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 22514 + ... + 46745.

It is an arithmetic number, because the mean of its divisors is an integer number (66177930).

Almost surely, 2^839142044 is an apocalyptic number.

It is an amenable number.

839142044 is a deficient number, since it is larger than the sum of its proper divisors (749128276).

839142044 is a wasteful number, since it uses less digits than its factorization.

839142044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69509 (or 69507 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 839142044 is about 28967.9485638869. The cubic root of 839142044 is about 943.2174506132.

It can be divided in two parts, 83914 and 2044, that added together give a palindrome (85958).

The spelling of 839142044 in words is "eight hundred thirty-nine million, one hundred forty-two thousand, forty-four".