42443411 has 2 divisors, whose sum is σ = 42443412. Its totient is φ = 42443410.

The previous prime is 42443393. The next prime is 42443413. The reversal of 42443411 is 11434424.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42443411 is a prime.

Together with 42443413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42443413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221705 + 21221706.

It is an arithmetic number, because the mean of its divisors is an integer number (21221706).

Almost surely, 2^42443411 is an apocalyptic number.

42443411 is a deficient number, since it is larger than the sum of its proper divisors (1).

42443411 is an equidigital number, since it uses as much as digits as its factorization.

42443411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 23.

The square root of 42443411 is about 6514.8607813214. The cubic root of 42443411 is about 348.8216454168.

Adding to 42443411 its reverse (11434424), we get a palindrome (53877835).

The spelling of 42443411 in words is "forty-two million, four hundred forty-three thousand, four hundred eleven".