404331323 has 4 divisors (see below), whose sum is σ = 441088728. Its totient is φ = 367573920.

The previous prime is 404331293. The next prime is 404331359. The reversal of 404331323 is 323133404.

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

It is a cyclic number.

It is not a de Polignac number, because 404331323 - 2¹⁶ = 404265787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404331023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18378686 + ... + 18378707.

It is an arithmetic number, because the mean of its divisors is an integer number (110272182).

Almost surely, 2^404331323 is an apocalyptic number.

404331323 is a deficient number, since it is larger than the sum of its proper divisors (36757405).

404331323 is a wasteful number, since it uses less digits than its factorization.

404331323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36757404.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 404331323 is about 20107.9915207860. The cubic root of 404331323 is about 739.4562129883.

Adding to 404331323 its reverse (323133404), we get a palindrome (727464727).

The spelling of 404331323 in words is "four hundred four million, three hundred thirty-one thousand, three hundred twenty-three".