42624271 has 2 divisors, whose sum is σ = 42624272. Its totient is φ = 42624270.

The previous prime is 42624269. The next prime is 42624289. The reversal of 42624271 is 17242624.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42624271 - 2¹ = 42624269 is a prime.

Together with 42624269, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42624671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21312135 + 21312136.

It is an arithmetic number, because the mean of its divisors is an integer number (21312136).

Almost surely, 2^42624271 is an apocalyptic number.

42624271 is a deficient number, since it is larger than the sum of its proper divisors (1).

42624271 is an equidigital number, since it uses as much as digits as its factorization.

42624271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 42624271 is about 6528.7265986561. The cubic root of 42624271 is about 349.3164099573.

Adding to 42624271 its reverse (17242624), we get a palindrome (59866895).

The spelling of 42624271 in words is "forty-two million, six hundred twenty-four thousand, two hundred seventy-one".