404224172 has 48 divisors (see below), whose sum is σ = 812996352. Its totient is φ = 174060480.

The previous prime is 404224169. The next prime is 404224213. The reversal of 404224172 is 271422404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106418 + ... + 110150.

It is an arithmetic number, because the mean of its divisors is an integer number (16937424).

Almost surely, 2^404224172 is an apocalyptic number.

It is an amenable number.

404224172 is an abundant number, since it is smaller than the sum of its proper divisors (408772180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404224172 is a wasteful number, since it uses less digits than its factorization.

404224172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878 (or 3876 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 404224172 is about 20105.3269558095. The cubic root of 404224172 is about 739.3908866348.

Adding to 404224172 its reverse (271422404), we get a palindrome (675646576).

The spelling of 404224172 in words is "four hundred four million, two hundred twenty-four thousand, one hundred seventy-two".