842137188 has 12 divisors (see below), whose sum is σ = 1964986800. Its totient is φ = 280712392.

The previous prime is 842137181. The next prime is 842137213. The reversal of 842137188 is 881731248.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (842137181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35089038 + ... + 35089061.

It is an arithmetic number, because the mean of its divisors is an integer number (163748900).

Almost surely, 2^842137188 is an apocalyptic number.

It is an amenable number.

842137188 is an abundant number, since it is smaller than the sum of its proper divisors (1122849612).

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

842137188 is a wasteful number, since it uses less digits than its factorization.

842137188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70178106 (or 70178104 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The square root of 842137188 is about 29019.6000661622. The cubic root of 842137188 is about 944.3383246405.

The spelling of 842137188 in words is "eight hundred forty-two million, one hundred thirty-seven thousand, one hundred eighty-eight".