40340141 has 4 divisors (see below), whose sum is σ = 40908384. Its totient is φ = 39771900.

The previous prime is 40340123. The next prime is 40340143. The reversal of 40340141 is 14104304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40340141 - 2¹⁸ = 40077997 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284015 + ... + 284156.

It is an arithmetic number, because the mean of its divisors is an integer number (10227096).

Almost surely, 2^40340141 is an apocalyptic number.

It is an amenable number.

40340141 is a deficient number, since it is larger than the sum of its proper divisors (568243).

40340141 is an equidigital number, since it uses as much as digits as its factorization.

40340141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568242.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40340141 is about 6351.3889032242. The cubic root of 40340141 is about 342.9618427182.

Adding to 40340141 its reverse (14104304), we get a palindrome (54444445).

The spelling of 40340141 in words is "forty million, three hundred forty thousand, one hundred forty-one".