41809221 has 12 divisors (see below), whose sum is σ = 60471372. Its totient is φ = 27835776.

The previous prime is 41809219. The next prime is 41809241. The reversal of 41809221 is 12290814.

It can be written as a sum of positive squares in 2 ways, for example, as 34680321 + 7128900 = 5889^2 + 2670^2 .

It is not a de Polignac number, because 41809221 - 2¹ = 41809219 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41809211) 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, 5245 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (5039281).

Almost surely, 2^41809221 is an apocalyptic number.

It is an amenable number.

41809221 is a deficient number, since it is larger than the sum of its proper divisors (18662151).

41809221 is a wasteful number, since it uses less digits than its factorization.

41809221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180 (or 6177 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 41809221 is about 6466.0050262894. The cubic root of 41809221 is about 347.0755537575.

The spelling of 41809221 in words is "forty-one million, eight hundred nine thousand, two hundred twenty-one".