858942852 has 24 divisors (see below), whose sum is σ = 2014379136. Its totient is φ = 284860128.

The previous prime is 858942829. The next prime is 858942859. The reversal of 858942852 is 258249858.

It is a junction number, because it is equal to n+sod(n) for n = 858942795 and 858942804.

It is not an unprimeable number, because it can be changed into a prime (858942859) 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, 179308 + ... + 184035.

It is an arithmetic number, because the mean of its divisors is an integer number (83932464).

Almost surely, 2^858942852 is an apocalyptic number.

It is an amenable number.

858942852 is an abundant number, since it is smaller than the sum of its proper divisors (1155436284).

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

858942852 is a wasteful number, since it uses less digits than its factorization.

858942852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363547 (or 363545 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 51.

The square root of 858942852 is about 29307.7268309912. The cubic root of 858942852 is about 950.5787247562.

The spelling of 858942852 in words is "eight hundred fifty-eight million, nine hundred forty-two thousand, eight hundred fifty-two".