224445330 has 80 divisors (see below), whose sum is σ = 619902360. Its totient is φ = 58226688.

The previous prime is 224445329. The next prime is 224445341. The reversal of 224445330 is 33544422.

It can be written as a sum of positive squares in 4 ways, for example, as 212314041 + 12131289 = 14571^2 + 3483^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 224445294 and 224445303.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26226 + ... + 33714.

Almost surely, 2^224445330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224445330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309951180).

224445330 is an abundant number, since it is smaller than the sum of its proper divisors (395457030).

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

224445330 is a wasteful number, since it uses less digits than its factorization.

224445330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7545 (or 7536 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 224445330 is about 14981.4995911624. The cubic root of 224445330 is about 607.7199934839.

Adding to 224445330 its reverse (33544422), we get a palindrome (257989752).

It can be divided in two parts, 2244 and 45330, that added together give a palindrome (47574).

The spelling of 224445330 in words is "two hundred twenty-four million, four hundred forty-five thousand, three hundred thirty".