42810538 has 16 divisors (see below), whose sum is σ = 65948256. Its totient is φ = 20834320.

The previous prime is 42810529. The next prime is 42810563. The reversal of 42810538 is 83501824.

42810538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12345 + ... + 15427.

It is an arithmetic number, because the mean of its divisors is an integer number (4121766).

Almost surely, 2^42810538 is an apocalyptic number.

42810538 is a deficient number, since it is larger than the sum of its proper divisors (23137718).

42810538 is a wasteful number, since it uses less digits than its factorization.

42810538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 42810538 is about 6542.9762341002. The cubic root of 42810538 is about 349.8245052165.

The spelling of 42810538 in words is "forty-two million, eight hundred ten thousand, five hundred thirty-eight".