41409909 has 12 divisors (see below), whose sum is σ = 63333036. Its totient is φ = 25982592.

The previous prime is 41409889. The next prime is 41409937. The reversal of 41409909 is 90990414.

It can be written as a sum of positive squares in 2 ways, for example, as 36360900 + 5049009 = 6030^2 + 2247^2 .

It is not a de Polignac number, because 41409909 - 2¹⁷ = 41278837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41402909) 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, 135174 + ... + 135479.

It is an arithmetic number, because the mean of its divisors is an integer number (5277753).

Almost surely, 2^41409909 is an apocalyptic number.

It is an amenable number.

41409909 is a deficient number, since it is larger than the sum of its proper divisors (21923127).

41409909 is a wasteful number, since it uses less digits than its factorization.

41409909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270676 (or 270673 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 41409909 is about 6435.0531466337. The cubic root of 41409909 is about 345.9670661515.

The spelling of 41409909 in words is "forty-one million, four hundred nine thousand, nine hundred nine".