224431424 has 84 divisors (see below), whose sum is σ = 532631904. Its totient is φ = 91905792.

The previous prime is 224431421. The next prime is 224431463. The reversal of 224431424 is 424134422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 224431393 and 224431402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224431421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236519 + ... + 237465.

It is an arithmetic number, because the mean of its divisors is an integer number (6340856).

Almost surely, 2^224431424 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 224431424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266315952).

224431424 is an abundant number, since it is smaller than the sum of its proper divisors (308200480).

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

224431424 is an equidigital number, since it uses as much as digits as its factorization.

224431424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 979 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 224431424 is about 14981.0354782305. The cubic root of 224431424 is about 607.7074423521.

Adding to 224431424 its reverse (424134422), we get a palindrome (648565846).

The spelling of 224431424 in words is "two hundred twenty-four million, four hundred thirty-one thousand, four hundred twenty-four".