842444142 has 16 divisors (see below), whose sum is σ = 1742988240. Its totient is φ = 271131392.

The previous prime is 842444137. The next prime is 842444149. The reversal of 842444142 is 241444248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842444149) 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 7 ways as a sum of consecutive naturals, for example, 2420643 + ... + 2420990.

It is an arithmetic number, because the mean of its divisors is an integer number (108936765).

Almost surely, 2^842444142 is an apocalyptic number.

842444142 is an abundant number, since it is smaller than the sum of its proper divisors (900544098).

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

842444142 is a wasteful number, since it uses less digits than its factorization.

842444142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841667.

The product of its digits is 32768, while the sum is 33.

The square root of 842444142 is about 29024.8883201986. Note that the first 3 decimals coincide. The cubic root of 842444142 is about 944.4530459388.

The spelling of 842444142 in words is "eight hundred forty-two million, four hundred forty-four thousand, one hundred forty-two".