404500224 has 144 divisors (see below), whose sum is σ = 1118476800. Its totient is φ = 129712128.

The previous prime is 404500171. The next prime is 404500231. The reversal of 404500224 is 422005404.

It is a self number, because there is not a number n which added to its sum of digits gives 404500224.

It is a congruent number.

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, 3579592 + ... + 3579704.

It is an arithmetic number, because the mean of its divisors is an integer number (7767200).

Almost surely, 2^404500224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404500224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559238400).

404500224 is an abundant number, since it is smaller than the sum of its proper divisors (713976576).

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

404500224 is a wasteful number, since it uses less digits than its factorization.

404500224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 404500224 is about 20112.1909298813. The cubic root of 404500224 is about 739.5591628053.

Adding to 404500224 its reverse (422005404), we get a palindrome (826505628).

The spelling of 404500224 in words is "four hundred four million, five hundred thousand, two hundred twenty-four".