42005568 has 56 divisors (see below), whose sum is σ = 121249440. Its totient is φ = 12728320.

The previous prime is 42005533. The next prime is 42005569. The reversal of 42005568 is 86550024.

It is not an unprimeable number, because it can be changed into a prime (42005569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7833 + ... + 12056.

Almost surely, 2^42005568 is an apocalyptic number.

42005568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42005568 is an abundant number, since it is smaller than the sum of its proper divisors (79243872).

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

42005568 is a wasteful number, since it uses less digits than its factorization.

42005568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19915 (or 19905 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 42005568 is about 6481.1702646976. The cubic root of 42005568 is about 347.6180245372.

The spelling of 42005568 in words is "forty-two million, five thousand, five hundred sixty-eight".