42316243 has 4 divisors (see below), whose sum is σ = 42388920. Its totient is φ = 42243568.

The previous prime is 42316237. The next prime is 42316259. The reversal of 42316243 is 34261324.

42316243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42316243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42316283) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35458 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (10597230).

Almost surely, 2^42316243 is an apocalyptic number.

42316243 is a deficient number, since it is larger than the sum of its proper divisors (72677).

42316243 is an equidigital number, since it uses as much as digits as its factorization.

42316243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72676.

The product of its digits is 3456, while the sum is 25.

The square root of 42316243 is about 6505.0936196184. The cubic root of 42316243 is about 348.4729196956.

Adding to 42316243 its reverse (34261324), we get a palindrome (76577567).

The spelling of 42316243 in words is "forty-two million, three hundred sixteen thousand, two hundred forty-three".