846139308 has 96 divisors (see below), whose sum is σ = 2327076864. Its totient is φ = 234282048.

The previous prime is 846139297. The next prime is 846139313. The reversal of 846139308 is 803931648.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 846139308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421435 + ... + 423437.

It is an arithmetic number, because the mean of its divisors is an integer number (24240384).

Almost surely, 2^846139308 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 846139308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163538432).

846139308 is an abundant number, since it is smaller than the sum of its proper divisors (1480937556).

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

846139308 is a wasteful number, since it uses less digits than its factorization.

846139308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 846139308 is about 29088.4737997716. The cubic root of 846139308 is about 945.8318992356.

The spelling of 846139308 in words is "eight hundred forty-six million, one hundred thirty-nine thousand, three hundred eight".