229805 has 16 divisors (see below), whose sum is σ = 302400. Its totient is φ = 167040.

The previous prime is 229799. The next prime is 229813. The reversal of 229805 is 508922.

229805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 229805 - 2⁸ = 229549 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3866 + ... + 3924.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2²²⁹⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

229805 is a deficient number, since it is larger than the sum of its proper divisors (72595).

229805 is a wasteful number, since it uses less digits than its factorization.

229805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 229805 is about 479.3798076682. The cubic root of 229805 is about 61.2519366318.

The spelling of 229805 in words is "two hundred twenty-nine thousand, eight hundred five".