229688 has 8 divisors (see below), whose sum is σ = 430680. Its totient is φ = 114840.

The previous prime is 229681. The next prime is 229693. The reversal of 229688 is 886922.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229681) by changing a digit.

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 as a sum of consecutive naturals, namely, 14348 + ... + 14363.

It is an arithmetic number, because the mean of its divisors is an integer number (53835).

2²²⁹⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

229688 is a deficient number, since it is larger than the sum of its proper divisors (200992).

229688 is a wasteful number, since it uses less digits than its factorization.

229688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28717 (or 28713 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 229688 is about 479.2577594573. The cubic root of 229688 is about 61.2415398561.

The spelling of 229688 in words is "two hundred twenty-nine thousand, six hundred eighty-eight".