42571371 has 4 divisors (see below), whose sum is σ = 56761832. Its totient is φ = 28380912.

The previous prime is 42571307. The next prime is 42571379. The reversal of 42571371 is 17317524.

42571371 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 42571371 - 2⁶ = 42571307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42571379) 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, 7095226 + ... + 7095231.

It is an arithmetic number, because the mean of its divisors is an integer number (14190458).

Almost surely, 2^42571371 is an apocalyptic number.

42571371 is a deficient number, since it is larger than the sum of its proper divisors (14190461).

42571371 is a wasteful number, since it uses less digits than its factorization.

42571371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190460.

The product of its digits is 5880, while the sum is 30.

The square root of 42571371 is about 6524.6740148455. The cubic root of 42571371 is about 349.1718406194.

Adding to 42571371 its reverse (17317524), we get a palindrome (59888895).

The spelling of 42571371 in words is "forty-two million, five hundred seventy-one thousand, three hundred seventy-one".