404423321331 has 8 divisors (see below), whose sum is σ = 539288971200. Its totient is φ = 269586609512.

The previous prime is 404423321279. The next prime is 404423321333. The reversal of 404423321331 is 133123324404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 404423321331 - 2¹³ = 404423313139 is a prime.

It is a super-2 number, since 2×404423321331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404423321333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7201881 + ... + 7257818.

It is an arithmetic number, because the mean of its divisors is an integer number (67411121400).

Almost surely, 2^404423321331 is an apocalyptic number.

404423321331 is a deficient number, since it is larger than the sum of its proper divisors (134865649869).

404423321331 is a wasteful number, since it uses less digits than its factorization.

404423321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14469025.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 404423321331 its reverse (133123324404), we get a palindrome (537546645735).

The spelling of 404423321331 in words is "four hundred four billion, four hundred twenty-three million, three hundred twenty-one thousand, three hundred thirty-one".