839142216 has 96 divisors (see below), whose sum is σ = 2526189120. Its totient is φ = 249475200.

The previous prime is 839142179. The next prime is 839142229. The reversal of 839142216 is 612241938.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31981 + ... + 51971.

It is an arithmetic number, because the mean of its divisors is an integer number (26314470).

Almost surely, 2^839142216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 839142216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263094560).

839142216 is an abundant number, since it is smaller than the sum of its proper divisors (1687046904).

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

839142216 is a wasteful number, since it uses less digits than its factorization.

839142216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20067 (or 20060 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 839142216 is about 28967.9515326852. The cubic root of 839142216 is about 943.2175150574.

The spelling of 839142216 in words is "eight hundred thirty-nine million, one hundred forty-two thousand, two hundred sixteen".