225868238 has 16 divisors (see below), whose sum is σ = 362484240. Its totient is φ = 105235200.

The previous prime is 225868231. The next prime is 225868259. The reversal of 225868238 is 832868522.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225868231) 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, 46403 + ... + 51038.

It is an arithmetic number, because the mean of its divisors is an integer number (22655265).

Almost surely, 2^225868238 is an apocalyptic number.

225868238 is a deficient number, since it is larger than the sum of its proper divisors (136616002).

225868238 is a wasteful number, since it uses less digits than its factorization.

225868238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97523.

The product of its digits is 368640, while the sum is 44.

The square root of 225868238 is about 15028.9134005090. The cubic root of 225868238 is about 609.0015359785.

The spelling of 225868238 in words is "two hundred twenty-five million, eight hundred sixty-eight thousand, two hundred thirty-eight".