404234252323 has 4 divisors (see below), whose sum is σ = 440982820728. Its totient is φ = 367485683920.

The previous prime is 404234252249. The next prime is 404234252333. The reversal of 404234252323 is 323252432404.

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 404234252323 - 2²⁵ = 404200697891 is a prime.

It is a super-2 number, since 2×404234252323² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404234252333) 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 3 ways as a sum of consecutive naturals, for example, 18374284186 + ... + 18374284207.

It is an arithmetic number, because the mean of its divisors is an integer number (110245705182).

Almost surely, 2^404234252323 is an apocalyptic number.

404234252323 is a deficient number, since it is larger than the sum of its proper divisors (36748568405).

404234252323 is a wasteful number, since it uses less digits than its factorization.

404234252323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36748568404.

The product of its (nonzero) digits is 138240, while the sum is 34.

Adding to 404234252323 its reverse (323252432404), we get a palindrome (727486684727).

The spelling of 404234252323 in words is "four hundred four billion, two hundred thirty-four million, two hundred fifty-two thousand, three hundred twenty-three".