229988 has 12 divisors (see below), whose sum is σ = 439152. Its totient is φ = 104520.

The previous prime is 229981. The next prime is 230003. The reversal of 229988 is 889922.

It is a zygodrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 229988.

It is not an unprimeable number, because it can be changed into a prime (229981) by changing a digit.

229988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2570 + ... + 2657.

It is an arithmetic number, because the mean of its divisors is an integer number (36596).

2²²⁹⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

229988 is a deficient number, since it is larger than the sum of its proper divisors (209164).

229988 is a wasteful number, since it uses less digits than its factorization.

229988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242 (or 5240 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 229988 is about 479.5706413032. The cubic root of 229988 is about 61.2681911815.

The spelling of 229988 in words is "two hundred twenty-nine thousand, nine hundred eighty-eight".