42985860 has 144 divisors (see below), whose sum is σ = 133272384. Its totient is φ = 10340352.

The previous prime is 42985849. The next prime is 42985861. The reversal of 42985860 is 6858924.

42985860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42985861) 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 47 ways as a sum of consecutive naturals, for example, 641547 + ... + 641613.

Almost surely, 2^42985860 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 42985860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66636192).

42985860 is an abundant number, since it is smaller than the sum of its proper divisors (90286524).

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

42985860 is a wasteful number, since it uses less digits than its factorization.

42985860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 42985860 is about 6556.3602707600. The cubic root of 42985860 is about 350.3014002406.

The spelling of 42985860 in words is "forty-two million, nine hundred eighty-five thousand, eight hundred sixty".