229280 has 24 divisors (see below), whose sum is σ = 542052. Its totient is φ = 91648.

The previous prime is 229267. The next prime is 229283. The reversal of 229280 is 82922.

It can be written as a sum of positive squares in 2 ways, for example, as 226576 + 2704 = 476^2 + 52^2 .

It is not an unprimeable number, because it can be changed into a prime (229283) by changing a digit.

229280 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557 + ... + 876.

2²²⁹²⁸⁰ is an apocalyptic number.

229280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229280 is an abundant number, since it is smaller than the sum of its proper divisors (312772).

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

229280 is a wasteful number, since it uses less digits than its factorization.

229280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 229280 is about 478.8319120527. The cubic root of 229280 is about 61.2052567857.

The spelling of 229280 in words is "two hundred twenty-nine thousand, two hundred eighty".