42530542 has 24 divisors (see below), whose sum is σ = 67886280. Its totient is φ = 19976880.

The previous prime is 42530533. The next prime is 42530557. The reversal of 42530542 is 24503524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64209 + ... + 64867.

It is an arithmetic number, because the mean of its divisors is an integer number (2828595).

Almost surely, 2^42530542 is an apocalyptic number.

42530542 is a deficient number, since it is larger than the sum of its proper divisors (25355738).

42530542 is a wasteful number, since it uses less digits than its factorization.

42530542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42530542 is about 6521.5444489783. The cubic root of 42530542 is about 349.0601779629.

The spelling of 42530542 in words is "forty-two million, five hundred thirty thousand, five hundred forty-two".