404081609209 has 8 divisors (see below), whose sum is σ = 417651131520. Its totient is φ = 390719255376.

The previous prime is 404081609177. The next prime is 404081609219. The reversal of 404081609209 is 902906180404.

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

It is a cyclic number.

It is not a de Polignac number, because 404081609209 - 2⁵ = 404081609177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404081609219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51788154 + ... + 51795955.

It is an arithmetic number, because the mean of its divisors is an integer number (52206391440).

Almost surely, 2^404081609209 is an apocalyptic number.

It is an amenable number.

404081609209 is a deficient number, since it is larger than the sum of its proper divisors (13569522311).

404081609209 is a wasteful number, since it uses less digits than its factorization.

404081609209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103584239.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 404081609209 in words is "four hundred four billion, eighty-one million, six hundred nine thousand, two hundred nine".