404224311 has 4 divisors (see below), whose sum is σ = 538965752. Its totient is φ = 269482872.

The previous prime is 404224309. The next prime is 404224313. The reversal of 404224311 is 113422404.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (404224309) and next prime (404224313).

It is not a de Polignac number, because 404224311 - 2¹ = 404224309 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 (404224313) 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 3 ways as a sum of consecutive naturals, for example, 67370716 + ... + 67370721.

It is an arithmetic number, because the mean of its divisors is an integer number (134741438).

Almost surely, 2^404224311 is an apocalyptic number.

404224311 is a deficient number, since it is larger than the sum of its proper divisors (134741441).

404224311 is a wasteful number, since it uses less digits than its factorization.

404224311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134741440.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 404224311 is about 20105.3304126045. The cubic root of 404224311 is about 739.3909713859.

Adding to 404224311 its reverse (113422404), we get a palindrome (517646715).

The spelling of 404224311 in words is "four hundred four million, two hundred twenty-four thousand, three hundred eleven".