40371671 has 2 divisors, whose sum is σ = 40371672. Its totient is φ = 40371670.

The previous prime is 40371631. The next prime is 40371673. The reversal of 40371671 is 17617304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40371671 - 2¹⁰ = 40370647 is a prime.

Together with 40371673, 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 (40371673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20185835 + 20185836.

It is an arithmetic number, because the mean of its divisors is an integer number (20185836).

Almost surely, 2^40371671 is an apocalyptic number.

40371671 is a deficient number, since it is larger than the sum of its proper divisors (1).

40371671 is an equidigital number, since it uses as much as digits as its factorization.

40371671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 40371671 is about 6353.8705526632. The cubic root of 40371671 is about 343.0511728539.

Adding to 40371671 its reverse (17617304), we get a palindrome (57988975).

The spelling of 40371671 in words is "forty million, three hundred seventy-one thousand, six hundred seventy-one".