842880384 has 64 divisors (see below), whose sum is σ = 2487678000. Its totient is φ = 280958976.

The previous prime is 842880377. The next prime is 842880403. The reversal of 842880384 is 483088248.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 118489 + ... + 125400.

Almost surely, 2^842880384 is an apocalyptic number.

It is an amenable number.

842880384 is an abundant number, since it is smaller than the sum of its proper divisors (1644797616).

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

842880384 is a wasteful number, since it uses less digits than its factorization.

842880384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243912 (or 243894 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The square root of 842880384 is about 29032.4023118997. The cubic root of 842880384 is about 944.6160395304.

The spelling of 842880384 in words is "eight hundred forty-two million, eight hundred eighty thousand, three hundred eighty-four".