404000323 has 4 divisors (see below), whose sum is σ = 409534648. Its totient is φ = 398466000.

The previous prime is 404000309. The next prime is 404000327. The reversal of 404000323 is 323000404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404000323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404000297 and 404000306.

It is not an unprimeable number, because it can be changed into a prime (404000327) 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 3 ways as a sum of consecutive naturals, for example, 2767053 + ... + 2767198.

It is an arithmetic number, because the mean of its divisors is an integer number (102383662).

Almost surely, 2^404000323 is an apocalyptic number.

404000323 is a deficient number, since it is larger than the sum of its proper divisors (5534325).

404000323 is an equidigital number, since it uses as much as digits as its factorization.

404000323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534324.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 404000323 is about 20099.7592771655. The cubic root of 404000323 is about 739.2543761838.

Adding to 404000323 its reverse (323000404), we get a palindrome (727000727).

The spelling of 404000323 in words is "four hundred four million, three hundred twenty-three", and thus it is an aban number.