41948909 has 2 divisors, whose sum is σ = 41948910. Its totient is φ = 41948908.

The previous prime is 41948899. The next prime is 41948923. The reversal of 41948909 is 90984914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22562500 + 19386409 = 4750^2 + 4403^2 .

It is a cyclic number.

It is not a de Polignac number, because 41948909 - 2⁸ = 41948653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 41948909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41948969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20974454 + 20974455.

It is an arithmetic number, because the mean of its divisors is an integer number (20974455).

Almost surely, 2^41948909 is an apocalyptic number.

It is an amenable number.

41948909 is a deficient number, since it is larger than the sum of its proper divisors (1).

41948909 is an equidigital number, since it uses as much as digits as its factorization.

41948909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 41948909 is about 6476.7977427121. The cubic root of 41948909 is about 347.4616599351.

The spelling of 41948909 in words is "forty-one million, nine hundred forty-eight thousand, nine hundred nine".