229724 has 24 divisors (see below), whose sum is σ = 459648. Its totient is φ = 99440.

The previous prime is 229717. The next prime is 229727. The reversal of 229724 is 427922.

It is a junction number, because it is equal to n+sod(n) for n = 229693 and 229702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229727) 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, 899 + ... + 1125.

It is an arithmetic number, because the mean of its divisors is an integer number (19152).

2²²⁹⁷²⁴ is an apocalyptic number.

It is an amenable number.

229724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

229724 is a wasteful number, since it uses less digits than its factorization.

229724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 263 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 229724 is about 479.2953160631. The cubic root of 229724 is about 61.2447392400.

The spelling of 229724 in words is "two hundred twenty-nine thousand, seven hundred twenty-four".