225730389 has 16 divisors (see below), whose sum is σ = 305173440. Its totient is φ = 148400640.

The previous prime is 225730367. The next prime is 225730397. The reversal of 225730389 is 983037522.

It is not a de Polignac number, because 225730389 - 2⁹ = 225729877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225730319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72709 + ... + 75749.

It is an arithmetic number, because the mean of its divisors is an integer number (19073340).

Almost surely, 2^225730389 is an apocalyptic number.

It is an amenable number.

225730389 is a deficient number, since it is larger than the sum of its proper divisors (79443051).

225730389 is a wasteful number, since it uses less digits than its factorization.

225730389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 225730389 is about 15024.3265739267. The cubic root of 225730389 is about 608.8776181024.

The spelling of 225730389 in words is "two hundred twenty-five million, seven hundred thirty thousand, three hundred eighty-nine".