224303728 has 40 divisors (see below), whose sum is σ = 494718336. Its totient is φ = 97521600.

The previous prime is 224303711. The next prime is 224303789. The reversal of 224303728 is 827303422.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 224303728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23658 + ... + 31753.

Almost surely, 2^224303728 is an apocalyptic number.

It is an amenable number.

224303728 is an abundant number, since it is smaller than the sum of its proper divisors (270414608).

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

224303728 is a wasteful number, since it uses less digits than its factorization.

224303728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55453 (or 55447 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 224303728 is about 14976.7729501385. The cubic root of 224303728 is about 607.5921635872.

The spelling of 224303728 in words is "two hundred twenty-four million, three hundred three thousand, seven hundred twenty-eight".