41809849 has 2 divisors, whose sum is σ = 41809850. Its totient is φ = 41809848.

The previous prime is 41809799. The next prime is 41809853. The reversal of 41809849 is 94890814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28355625 + 13454224 = 5325^2 + 3668^2 .

It is a cyclic number.

It is not a de Polignac number, because 41809849 - 2⁷ = 41809721 is a prime.

It is not a weakly prime, because it can be changed into another prime (41809879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20904924 + 20904925.

It is an arithmetic number, because the mean of its divisors is an integer number (20904925).

Almost surely, 2^41809849 is an apocalyptic number.

It is an amenable number.

41809849 is a deficient number, since it is larger than the sum of its proper divisors (1).

41809849 is an equidigital number, since it uses as much as digits as its factorization.

41809849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 41809849 is about 6466.0535877767. The cubic root of 41809849 is about 347.0772915110.

The spelling of 41809849 in words is "forty-one million, eight hundred nine thousand, eight hundred forty-nine".