42041 has 4 divisors (see below), whose sum is σ = 44532. Its totient is φ = 39552.

The previous prime is 42023. The next prime is 42043. The reversal of 42041 is 14024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32041 + 10000 = 179^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 42041 - 2¹⁰ = 41017 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7 and base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42041.

It is not an unprimeable number, because it can be changed into a prime (42043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220 + ... + 1253.

It is an arithmetic number, because the mean of its divisors is an integer number (11133).

2⁴²⁰⁴¹ is an apocalyptic number.

It is an amenable number.

42041 is a deficient number, since it is larger than the sum of its proper divisors (2491).

42041 is a wasteful number, since it uses less digits than its factorization.

42041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 42041 is about 205.0390206766. The cubic root of 42041 is about 34.7715736507.

Adding to 42041 its reverse (14024), we get a palindrome (56065).

The spelling of 42041 in words is "forty-two thousand, forty-one", and thus it is an iban number.