842271668 has 12 divisors (see below), whose sum is σ = 1684543392. Its totient is φ = 360973560.

The previous prime is 842271641. The next prime is 842271671. The reversal of 842271668 is 866172248.

842271668 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15040538 + ... + 15040593.

It is an arithmetic number, because the mean of its divisors is an integer number (140378616).

Almost surely, 2^842271668 is an apocalyptic number.

It is an amenable number.

842271668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

842271668 is a wasteful number, since it uses less digits than its factorization.

842271668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30081142 (or 30081140 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 842271668 is about 29021.9170283426. The cubic root of 842271668 is about 944.3885887623.

The spelling of 842271668 in words is "eight hundred forty-two million, two hundred seventy-one thousand, six hundred sixty-eight".