409448659 has 4 divisors (see below), whose sum is σ = 410289904. Its totient is φ = 408607416.

The previous prime is 409448639. The next prime is 409448671. The reversal of 409448659 is 956844904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 409448659 - 2⁹ = 409448147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409448609) 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, 419892 + ... + 420865.

It is an arithmetic number, because the mean of its divisors is an integer number (102572476).

Almost surely, 2^409448659 is an apocalyptic number.

409448659 is a deficient number, since it is larger than the sum of its proper divisors (841245).

409448659 is an equidigital number, since it uses as much as digits as its factorization.

409448659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841244.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 409448659 is about 20234.8377557123. The cubic root of 409448659 is about 742.5627356137.

The spelling of 409448659 in words is "four hundred nine million, four hundred forty-eight thousand, six hundred fifty-nine".