42112843 has 16 divisors (see below), whose sum is σ = 44870400. Its totient is φ = 39463200.

The previous prime is 42112817. The next prime is 42112879. The reversal of 42112843 is 34821124.

It is not a de Polignac number, because 42112843 - 2⁹ = 42112331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42112643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258280 + ... + 258442.

It is an arithmetic number, because the mean of its divisors is an integer number (2804400).

Almost surely, 2^42112843 is an apocalyptic number.

42112843 is a deficient number, since it is larger than the sum of its proper divisors (2757557).

42112843 is a wasteful number, since it uses less digits than its factorization.

42112843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402.

The product of its digits is 1536, while the sum is 25.

The square root of 42112843 is about 6489.4408850070. The cubic root of 42112843 is about 347.9136918786.

Adding to 42112843 its reverse (34821124), we get a palindrome (76933967).

The spelling of 42112843 in words is "forty-two million, one hundred twelve thousand, eight hundred forty-three".