842381056 has 72 divisors (see below), whose sum is σ = 1841439600. Its totient is φ = 381419520.

The previous prime is 842381053. The next prime is 842381069. The reversal of 842381056 is 650183248.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842381053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1095040 + ... + 1095808.

It is an arithmetic number, because the mean of its divisors is an integer number (25575550).

Almost surely, 2^842381056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842381056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (920719800).

842381056 is an abundant number, since it is smaller than the sum of its proper divisors (999058544).

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

842381056 is a wasteful number, since it uses less digits than its factorization.

842381056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 842381056 is about 29023.8015428717. The cubic root of 842381056 is about 944.4294703888.

The spelling of 842381056 in words is "eight hundred forty-two million, three hundred eighty-one thousand, fifty-six".