229928 has 16 divisors (see below), whose sum is σ = 442260. Its totient is φ = 112000.

The previous prime is 229903. The next prime is 229937. The reversal of 229928 is 829922.

229928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 228484 + 1444 = 478^2 + 38^2 .

It is a junction number, because it is equal to n+sod(n) for n = 229894 and 229903.

It is an unprimeable number.

229928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 678.

2²²⁹⁹²⁸ is an apocalyptic number.

It is an amenable number.

229928 is a deficient number, since it is larger than the sum of its proper divisors (212332).

229928 is a wasteful number, since it uses less digits than its factorization.

229928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 744 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 229928 is about 479.5080812666. The cubic root of 229928 is about 61.2628627713.

The spelling of 229928 in words is "two hundred twenty-nine thousand, nine hundred twenty-eight".