41356409 has 2 divisors, whose sum is σ = 41356410. Its totient is φ = 41356408.

The previous prime is 41356397. The next prime is 41356423. The reversal of 41356409 is 90465314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32035600 + 9320809 = 5660^2 + 3053^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41356409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41356429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20678204 + 20678205.

It is an arithmetic number, because the mean of its divisors is an integer number (20678205).

Almost surely, 2^41356409 is an apocalyptic number.

It is an amenable number.

41356409 is a deficient number, since it is larger than the sum of its proper divisors (1).

41356409 is an equidigital number, since it uses as much as digits as its factorization.

41356409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 41356409 is about 6430.8948832958. The cubic root of 41356409 is about 345.8180099209.

The spelling of 41356409 in words is "forty-one million, three hundred fifty-six thousand, four hundred nine".