404423303 has 16 divisors (see below), whose sum is σ = 450186240. Its totient is φ = 361713600.

The previous prime is 404423273. The next prime is 404423309. The reversal of 404423303 is 303324404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 404423303 - 2¹⁰ = 404422279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404423309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15776 + ... + 32522.

It is an arithmetic number, because the mean of its divisors is an integer number (28136640).

Almost surely, 2^404423303 is an apocalyptic number.

404423303 is a deficient number, since it is larger than the sum of its proper divisors (45762937).

404423303 is a wasteful number, since it uses less digits than its factorization.

404423303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16838.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 404423303 is about 20110.2785410844. The cubic root of 404423303 is about 739.5122808892.

Adding to 404423303 its reverse (303324404), we get a palindrome (707747707).

The spelling of 404423303 in words is "four hundred four million, four hundred twenty-three thousand, three hundred three".