842518122 has 8 divisors (see below), whose sum is σ = 1685036256. Its totient is φ = 280839372.

The previous prime is 842518097. The next prime is 842518123. The reversal of 842518122 is 221815248.

It is a sphenic number, since it is the product of 3 distinct primes.

842518122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (842518123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 70209838 + ... + 70209849.

It is an arithmetic number, because the mean of its divisors is an integer number (210629532).

Almost surely, 2^842518122 is an apocalyptic number.

842518122 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.

842518122 is a wasteful number, since it uses less digits than its factorization.

842518122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140419692.

The product of its digits is 10240, while the sum is 33.

The square root of 842518122 is about 29026.1627157294. The cubic root of 842518122 is about 944.4806911312.

The spelling of 842518122 in words is "eight hundred forty-two million, five hundred eighteen thousand, one hundred twenty-two".