404305 has 8 divisors (see below), whose sum is σ = 529344. Its totient is φ = 294000.

The previous prime is 404291. The next prime is 404309. The reversal of 404305 is 503404.

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

It is not a de Polignac number, because 404305 - 2⁵ = 404273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404309) 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, 3621 + ... + 3730.

It is an arithmetic number, because the mean of its divisors is an integer number (66168).

2⁴⁰⁴³⁰⁵ is an apocalyptic number.

It is an amenable number.

404305 is a deficient number, since it is larger than the sum of its proper divisors (125039).

404305 is a wasteful number, since it uses less digits than its factorization.

404305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7367.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 404305 is about 635.8498250373. The cubic root of 404305 is about 73.9440165812.

Adding to 404305 its reverse (503404), we get a palindrome (907709).

Subtracting 404305 from its reverse (503404), we obtain a palindrome (99099).

The spelling of 404305 in words is "four hundred four thousand, three hundred five".