41909 has 4 divisors (see below), whose sum is σ = 47904. Its totient is φ = 35916.

The previous prime is 41903. The next prime is 41911. The reversal of 41909 is 90914.

41909 = T₂₂ + T₂₃ + ... + T₆₃.

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 41909 - 2⁴ = 41893 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 41909.

It is not an unprimeable number, because it can be changed into a prime (41903) 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, 2987 + ... + 3000.

It is an arithmetic number, because the mean of its divisors is an integer number (11976).

2⁴¹⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

41909 is a deficient number, since it is larger than the sum of its proper divisors (5995).

41909 is an equidigital number, since it uses as much as digits as its factorization.

41909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 41909 is about 204.7168776628. The cubic root of 41909 is about 34.7351436590.

The spelling of 41909 in words is "forty-one thousand, nine hundred nine".