40343571 has 6 divisors (see below), whose sum is σ = 58274060. Its totient is φ = 26895708.

The previous prime is 40343543. The next prime is 40343573. The reversal of 40343571 is 17534304.

It is not a de Polignac number, because 40343571 - 2²³ = 31954963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40343573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2241301 + ... + 2241318.

Almost surely, 2^40343571 is an apocalyptic number.

40343571 is a deficient number, since it is larger than the sum of its proper divisors (17930489).

40343571 is a wasteful number, since it uses less digits than its factorization.

40343571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482625 (or 4482622 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 40343571 is about 6351.6589171649. The cubic root of 40343571 is about 342.9715627783.

Adding to 40343571 its reverse (17534304), we get a palindrome (57877875).

The spelling of 40343571 in words is "forty million, three hundred forty-three thousand, five hundred seventy-one".