41564409 has 4 divisors (see below), whose sum is σ = 55419216. Its totient is φ = 27709604.

The previous prime is 41564387. The next prime is 41564417. The reversal of 41564409 is 90446514.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41564409 - 2⁵ = 41564377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41564409.

It is not an unprimeable number, because it can be changed into a prime (41564449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6927399 + ... + 6927404.

It is an arithmetic number, because the mean of its divisors is an integer number (13854804).

Almost surely, 2^41564409 is an apocalyptic number.

It is an amenable number.

41564409 is a deficient number, since it is larger than the sum of its proper divisors (13854807).

41564409 is a wasteful number, since it uses less digits than its factorization.

41564409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13854806.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 41564409 is about 6447.0465331034. The cubic root of 41564409 is about 346.3967988271.

The spelling of 41564409 in words is "forty-one million, five hundred sixty-four thousand, four hundred nine".