404320023 has 6 divisors (see below), whose sum is σ = 584017824. Its totient is φ = 269546676.

The previous prime is 404319997. The next prime is 404320031. The reversal of 404320023 is 320023404.

It is not a de Polignac number, because 404320023 - 2⁸ = 404319767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404319978 and 404320005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404320043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22462215 + ... + 22462232.

It is an arithmetic number, because the mean of its divisors is an integer number (97336304).

Almost surely, 2^404320023 is an apocalyptic number.

404320023 is a deficient number, since it is larger than the sum of its proper divisors (179697801).

404320023 is a wasteful number, since it uses less digits than its factorization.

404320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44924453 (or 44924450 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 404320023 is about 20107.7105360108. The cubic root of 404320023 is about 739.4493243036.

Adding to 404320023 its reverse (320023404), we get a palindrome (724343427).

The spelling of 404320023 in words is "four hundred four million, three hundred twenty thousand, twenty-three".