229927728 has 40 divisors (see below), whose sum is σ = 596158768. Its totient is φ = 76361472.

The previous prime is 229927717. The next prime is 229927729. The reversal of 229927728 is 827729922.

229927728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (229927729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4650 + ... + 21942.

Almost surely, 2^229927728 is an apocalyptic number.

It is an amenable number.

229927728 is an abundant number, since it is smaller than the sum of its proper divisors (366231040).

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

229927728 is a wasteful number, since it uses less digits than its factorization.

229927728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17581 (or 17575 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 229927728 is about 15163.3679636155. The cubic root of 229927728 is about 612.6283861372.

The spelling of 229927728 in words is "two hundred twenty-nine million, nine hundred twenty-seven thousand, seven hundred twenty-eight".