404504323 has 2 divisors, whose sum is σ = 404504324. Its totient is φ = 404504322.

The previous prime is 404504299. The next prime is 404504333. The reversal of 404504323 is 323405404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404504323 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (404504333) 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 as a sum of consecutive naturals, namely, 202252161 + 202252162.

It is an arithmetic number, because the mean of its divisors is an integer number (202252162).

Almost surely, 2^404504323 is an apocalyptic number.

404504323 is a deficient number, since it is larger than the sum of its proper divisors (1).

404504323 is an equidigital number, since it uses as much as digits as its factorization.

404504323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 404504323 is about 20112.2928329915. The cubic root of 404504323 is about 739.5616609026.

Adding to 404504323 its reverse (323405404), we get a palindrome (727909727).

The spelling of 404504323 in words is "four hundred four million, five hundred four thousand, three hundred twenty-three".