42416443 has 4 divisors (see below), whose sum is σ = 42953440. Its totient is φ = 41879448.

The previous prime is 42416389. The next prime is 42416449. The reversal of 42416443 is 34461424.

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-42416443 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (42416449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268380 + ... + 268537.

It is an arithmetic number, because the mean of its divisors is an integer number (10738360).

Almost surely, 2^42416443 is an apocalyptic number.

42416443 is a deficient number, since it is larger than the sum of its proper divisors (536997).

42416443 is an equidigital number, since it uses as much as digits as its factorization.

42416443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536996.

The product of its digits is 9216, while the sum is 28.

The square root of 42416443 is about 6512.7907228776. The cubic root of 42416443 is about 348.7477508280.

Adding to 42416443 its reverse (34461424), we get a palindrome (76877867).

The spelling of 42416443 in words is "forty-two million, four hundred sixteen thousand, four hundred forty-three".