228343225 has 12 divisors (see below), whose sum is σ = 308886480. Its totient is φ = 166067600.

The previous prime is 228343217. The next prime is 228343237. The reversal of 228343225 is 522343822.

It is a happy number.

It is not a de Polignac number, because 228343225 - 2³ = 228343217 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 414895 + ... + 415444.

It is an arithmetic number, because the mean of its divisors is an integer number (25740540).

Almost surely, 2^228343225 is an apocalyptic number.

228343225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228343225 is a deficient number, since it is larger than the sum of its proper divisors (80543255).

228343225 is a wasteful number, since it uses less digits than its factorization.

228343225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830360 (or 830355 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 228343225 is about 15111.0299119550. The cubic root of 228343225 is about 611.2178705739.

The spelling of 228343225 in words is "two hundred twenty-eight million, three hundred forty-three thousand, two hundred twenty-five".