804444909 has 8 divisors (see below), whose sum is σ = 1073386752. Its totient is φ = 535899840.

The previous prime is 804444899. The next prime is 804444911. The reversal of 804444909 is 909444408.

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

It is not a de Polignac number, because 804444909 - 2⁹ = 804444397 is a prime.

It is a super-2 number, since 2×804444909² = 1294263223232036562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804444919) 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, 94429 + ... + 102594.

It is an arithmetic number, because the mean of its divisors is an integer number (134173344).

Almost surely, 2^804444909 is an apocalyptic number.

It is an amenable number.

804444909 is a deficient number, since it is larger than the sum of its proper divisors (268941843).

804444909 is a wasteful number, since it uses less digits than its factorization.

804444909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198387.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 804444909 is about 28362.7380377847. The cubic root of 804444909 is about 930.0338789832.

The spelling of 804444909 in words is "eight hundred four million, four hundred forty-four thousand, nine hundred nine".