42043142 has 12 divisors (see below), whose sum is σ = 66993540. Its totient is φ = 19784736.

The previous prime is 42043139. The next prime is 42043201. The reversal of 42043142 is 24134024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35792 + ... + 36947.

It is an arithmetic number, because the mean of its divisors is an integer number (5582795).

Almost surely, 2^42043142 is an apocalyptic number.

42043142 is a deficient number, since it is larger than the sum of its proper divisors (24950398).

42043142 is a wasteful number, since it uses less digits than its factorization.

42043142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72775 (or 72758 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42043142 is about 6484.0683216635. The cubic root of 42043142 is about 347.7216418093.

Adding to 42043142 its reverse (24134024), we get a palindrome (66177166).

The spelling of 42043142 in words is "forty-two million, forty-three thousand, one hundred forty-two".