42507568 has 20 divisors (see below), whose sum is σ = 82469920. Its totient is φ = 21225024.

The previous prime is 42507559. The next prime is 42507571. The reversal of 42507568 is 86570524.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15346 + ... + 17902.

It is an arithmetic number, because the mean of its divisors is an integer number (4123496).

Almost surely, 2^42507568 is an apocalyptic number.

It is an amenable number.

42507568 is a deficient number, since it is larger than the sum of its proper divisors (39962352).

42507568 is a wasteful number, since it uses less digits than its factorization.

42507568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 42507568 is about 6519.7828184687. The cubic root of 42507568 is about 348.9973152723.

The spelling of 42507568 in words is "forty-two million, five hundred seven thousand, five hundred sixty-eight".