225730 has 8 divisors (see below), whose sum is σ = 406332. Its totient is φ = 90288.

The previous prime is 225721. The next prime is 225733. The reversal of 225730 is 37522.

It is a happy number.

225730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 199809 + 25921 = 447^2 + 161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 225698 and 225707.

It is not an unprimeable number, because it can be changed into a prime (225733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11277 + ... + 11296.

2²²⁵⁷³⁰ is an apocalyptic number.

225730 is a deficient number, since it is larger than the sum of its proper divisors (180602).

225730 is a wasteful number, since it uses less digits than its factorization.

225730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22580.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 225730 is about 475.1105134598. The cubic root of 225730 is about 60.8877268344.

The spelling of 225730 in words is "two hundred twenty-five thousand, seven hundred thirty".