42707271 has 4 divisors (see below), whose sum is σ = 56943032. Its totient is φ = 28471512.

The previous prime is 42707261. The next prime is 42707279. The reversal of 42707271 is 17270724.

42707271 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 not a de Polignac number, because 42707271 - 2⁹ = 42706759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42707279) 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, 7117876 + ... + 7117881.

It is an arithmetic number, because the mean of its divisors is an integer number (14235758).

Almost surely, 2^42707271 is an apocalyptic number.

42707271 is a deficient number, since it is larger than the sum of its proper divisors (14235761).

42707271 is a wasteful number, since it uses less digits than its factorization.

42707271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14235760.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 42707271 is about 6535.0800301144. The cubic root of 42707271 is about 349.5429981012.

Adding to 42707271 its reverse (17270724), we get a palindrome (59977995).

The spelling of 42707271 in words is "forty-two million, seven hundred seven thousand, two hundred seventy-one".