404224423 has 8 divisors (see below), whose sum is σ = 407749680. Its totient is φ = 400713600.

The previous prime is 404224397. The next prime is 404224439. The reversal of 404224423 is 324422404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404224423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404224463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56973 + ... + 63673.

It is an arithmetic number, because the mean of its divisors is an integer number (50968710).

Almost surely, 2^404224423 is an apocalyptic number.

404224423 is a deficient number, since it is larger than the sum of its proper divisors (3525257).

404224423 is a wasteful number, since it uses less digits than its factorization.

404224423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 404224423 is about 20105.3331979353. Note that the first 3 decimals coincide. The cubic root of 404224423 is about 739.3910396745.

Adding to 404224423 its reverse (324422404), we get a palindrome (728646827).

The spelling of 404224423 in words is "four hundred four million, two hundred twenty-four thousand, four hundred twenty-three".