852217842 has 16 divisors (see below), whose sum is σ = 1947926592. Its totient is φ = 243490800.

The previous prime is 852217831. The next prime is 852217843. The reversal of 852217842 is 248712258.

It is a self number, because there is not a number n which added to its sum of digits gives 852217842.

It is not an unprimeable number, because it can be changed into a prime (852217843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10145409 + ... + 10145492.

It is an arithmetic number, because the mean of its divisors is an integer number (121745412).

Almost surely, 2^852217842 is an apocalyptic number.

852217842 is an abundant number, since it is smaller than the sum of its proper divisors (1095708750).

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

852217842 is a wasteful number, since it uses less digits than its factorization.

852217842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20290913.

The product of its digits is 71680, while the sum is 39.

The square root of 852217842 is about 29192.7703721315. The cubic root of 852217842 is about 948.0914005947.

The spelling of 852217842 in words is "eight hundred fifty-two million, two hundred seventeen thousand, eight hundred forty-two".