225798630 has 32 divisors (see below), whose sum is σ = 547289568. Its totient is φ = 59616000.

The previous prime is 225798577. The next prime is 225798647. The reversal of 225798630 is 36897522.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 34231 + ... + 40290.

It is an arithmetic number, because the mean of its divisors is an integer number (17102799).

Almost surely, 2^225798630 is an apocalyptic number.

225798630 is an abundant number, since it is smaller than the sum of its proper divisors (321490938).

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

225798630 is a wasteful number, since it uses less digits than its factorization.

225798630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74632.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 225798630 is about 15026.5974192430. The cubic root of 225798630 is about 608.9389689191.

The spelling of 225798630 in words is "two hundred twenty-five million, seven hundred ninety-eight thousand, six hundred thirty".