40340311 has 12 divisors (see below), whose sum is σ = 44958256. Its totient is φ = 36162720.

The previous prime is 40340297. The next prime is 40340317. The reversal of 40340311 is 11304304.

It is not a de Polignac number, because 40340311 - 2¹³ = 40332119 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 (40340317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6550 + ... + 11116.

Almost surely, 2^40340311 is an apocalyptic number.

40340311 is a deficient number, since it is larger than the sum of its proper divisors (4617945).

40340311 is a wasteful number, since it uses less digits than its factorization.

40340311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662 (or 4651 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40340311 is about 6351.4022861097. The cubic root of 40340311 is about 342.9623244834.

Adding to 40340311 its reverse (11304304), we get a palindrome (51644615).

The spelling of 40340311 in words is "forty million, three hundred forty thousand, three hundred eleven".