42536568 has 64 divisors (see below), whose sum is σ = 111767040. Its totient is φ = 13464704.

The previous prime is 42536561. The next prime is 42536609. The reversal of 42536568 is 86563524.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42536561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145030 + ... + 145322.

It is an arithmetic number, because the mean of its divisors is an integer number (1746360).

Almost surely, 2^42536568 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 42536568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55883520).

42536568 is an abundant number, since it is smaller than the sum of its proper divisors (69230472).

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

42536568 is a wasteful number, since it uses less digits than its factorization.

42536568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 584 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 42536568 is about 6522.0064397392. The cubic root of 42536568 is about 349.0766628794.

The spelling of 42536568 in words is "forty-two million, five hundred thirty-six thousand, five hundred sixty-eight".