40041 has 8 divisors (see below), whose sum is σ = 59360. Its totient is φ = 26676.

The previous prime is 40039. The next prime is 40063. The reversal of 40041 is 14004.

40041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40041 - 2¹ = 40039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

40041 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 40041.

It is not an unprimeable number, because it can be changed into a prime (40031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715 + ... + 768.

It is an arithmetic number, because the mean of its divisors is an integer number (7420).

2⁴⁰⁰⁴¹ is an apocalyptic number.

It is an amenable number.

40041 is a deficient number, since it is larger than the sum of its proper divisors (19319).

40041 is a wasteful number, since it uses less digits than its factorization.

40041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 40041 is about 200.1024737478. The cubic root of 40041 is about 34.2111997791.

Adding to 40041 its reverse (14004), we get a palindrome (54045).

It can be divided in two parts, 4004 and 1, that added together give a triangular number (4005 = T₈₉).

The spelling of 40041 in words is "forty thousand, forty-one", and thus it is an iban number.