42237543 has 12 divisors (see below), whose sum is σ = 58329128. Its totient is φ = 27185760.

The previous prime is 42237523. The next prime is 42237557. The reversal of 42237543 is 34573224.

It is not a de Polignac number, because 42237543 - 2⁹ = 42237031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42237543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42237523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5848 + ... + 10893.

Almost surely, 2^42237543 is an apocalyptic number.

42237543 is a deficient number, since it is larger than the sum of its proper divisors (16091585).

42237543 is a wasteful number, since it uses less digits than its factorization.

42237543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16802 (or 16773 counting only the distinct ones).

The product of its digits is 20160, while the sum is 30.

The square root of 42237543 is about 6499.0416985891. The cubic root of 42237543 is about 348.2567549636.

The spelling of 42237543 in words is "forty-two million, two hundred thirty-seven thousand, five hundred forty-three".