839166420 has 24 divisors (see below), whose sum is σ = 2349666144. Its totient is φ = 223777696.

The previous prime is 839166403. The next prime is 839166421. The reversal of 839166420 is 24661938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839166421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6992994 + ... + 6993113.

It is an arithmetic number, because the mean of its divisors is an integer number (97902756).

Almost surely, 2^839166420 is an apocalyptic number.

It is an amenable number.

839166420 is an abundant number, since it is smaller than the sum of its proper divisors (1510499724).

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

839166420 is a wasteful number, since it uses less digits than its factorization.

839166420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986119 (or 13986117 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 839166420 is about 28968.3693017056. The cubic root of 839166420 is about 943.2265836105.

The spelling of 839166420 in words is "eight hundred thirty-nine million, one hundred sixty-six thousand, four hundred twenty".