404224023 has 8 divisors (see below), whose sum is σ = 615960448. Its totient is φ = 230985144.

The previous prime is 404224019. The next prime is 404224061. The reversal of 404224023 is 320422404.

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

It is not a de Polignac number, because 404224023 - 2² = 404224019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 19248763 = 404224023 / (4 + 0 + 4 + 2 + 2 + 4 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404224063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9624361 + ... + 9624402.

It is an arithmetic number, because the mean of its divisors is an integer number (76995056).

Almost surely, 2^404224023 is an apocalyptic number.

404224023 is a deficient number, since it is larger than the sum of its proper divisors (211736425).

404224023 is a wasteful number, since it uses less digits than its factorization.

404224023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19248773.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 404224023 is about 20105.3232503235. The cubic root of 404224023 is about 739.3907957865.

Adding to 404224023 its reverse (320422404), we get a palindrome (724646427).

The spelling of 404224023 in words is "four hundred four million, two hundred twenty-four thousand, twenty-three".