839934045 has 48 divisors (see below), whose sum is σ = 1622687040. Its totient is φ = 399416832.

The previous prime is 839934037. The next prime is 839934059. The reversal of 839934045 is 540439938.

It is a happy number.

It is not a de Polignac number, because 839934045 - 2³ = 839934037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 14359 + ... + 43428.

It is an arithmetic number, because the mean of its divisors is an integer number (33805980).

Almost surely, 2^839934045 is an apocalyptic number.

839934045 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

839934045 is a deficient number, since it is larger than the sum of its proper divisors (782752995).

839934045 is a wasteful number, since it uses less digits than its factorization.

839934045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57834 (or 57831 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 839934045 is about 28981.6156381938. The cubic root of 839934045 is about 943.5141005355.

The spelling of 839934045 in words is "eight hundred thirty-nine million, nine hundred thirty-four thousand, forty-five".