839142045 has 64 divisors (see below), whose sum is σ = 1710973440. Its totient is φ = 382247424.

The previous prime is 839142023. The next prime is 839142061. The reversal of 839142045 is 540241938.

It is not a de Polignac number, because 839142045 - 2⁵ = 839142013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 294367 + ... + 297203.

It is an arithmetic number, because the mean of its divisors is an integer number (26733960).

Almost surely, 2^839142045 is an apocalyptic number.

It is an amenable number.

839142045 is an abundant number, since it is smaller than the sum of its proper divisors (871831395).

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

839142045 is a wasteful number, since it uses less digits than its factorization.

839142045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171 (or 3165 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 839142045 is about 28967.9485811474. The cubic root of 839142045 is about 943.2174509879.

It can be divided in two parts, 839 and 142045, that added together give a square (142884 = 378²).

The spelling of 839142045 in words is "eight hundred thirty-nine million, one hundred forty-two thousand, forty-five".