4042985856 has 512 divisors, whose sum is σ = 14065228800. Its totient is φ = 1000636416.

The previous prime is 4042985833. The next prime is 4042985867. The reversal of 4042985856 is 6585892404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4042985799 and 4042985808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68525155 + ... + 68525213.

It is an arithmetic number, because the mean of its divisors is an integer number (27471150).

Almost surely, 2^4042985856 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 4042985856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7032614400).

4042985856 is an abundant number, since it is smaller than the sum of its proper divisors (10022242944).

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

4042985856 is a wasteful number, since it uses less digits than its factorization.

4042985856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The square root of 4042985856 is about 63584.4781059025. The cubic root of 4042985856 is about 1593.0671195360.

The spelling of 4042985856 in words is "four billion, forty-two million, nine hundred eighty-five thousand, eight hundred fifty-six".