41239409 has 2 divisors, whose sum is σ = 41239410. Its totient is φ = 41239408.

The previous prime is 41239403. The next prime is 41239417. The reversal of 41239409 is 90493214.

It is a happy number.

41239409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30217009 + 11022400 = 5497^2 + 3320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41239409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41239403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20619704 + 20619705.

It is an arithmetic number, because the mean of its divisors is an integer number (20619705).

Almost surely, 2^41239409 is an apocalyptic number.

It is an amenable number.

41239409 is a deficient number, since it is larger than the sum of its proper divisors (1).

41239409 is an equidigital number, since it uses as much as digits as its factorization.

41239409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 41239409 is about 6421.7917281706. The cubic root of 41239409 is about 345.4915879422.

The spelling of 41239409 in words is "forty-one million, two hundred thirty-nine thousand, four hundred nine".