409447441 has 8 divisors (see below), whose sum is σ = 446526080. Its totient is φ = 373166352.

The previous prime is 409447421. The next prime is 409447457. The reversal of 409447441 is 144744904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 409447441 - 2⁹ = 409446929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409447441.

It is not an unprimeable number, because it can be changed into a prime (409447421) 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 in 7 ways as a sum of consecutive naturals, for example, 198315 + ... + 200368.

It is an arithmetic number, because the mean of its divisors is an integer number (55815760).

Almost surely, 2^409447441 is an apocalyptic number.

It is an amenable number.

409447441 is a deficient number, since it is larger than the sum of its proper divisors (37078639).

409447441 is a wasteful number, since it uses less digits than its factorization.

409447441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398775.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 409447441 is about 20234.8076590809. The cubic root of 409447441 is about 742.5619993046.

The spelling of 409447441 in words is "four hundred nine million, four hundred forty-seven thousand, four hundred forty-one".