228249305 has 8 divisors (see below), whose sum is σ = 274154112. Its totient is φ = 182429488.

The previous prime is 228249257. The next prime is 228249331. The reversal of 228249305 is 503942822.

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

It is a cyclic number.

It is not a de Polignac number, because 228249305 - 2¹⁰ = 228248281 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 15179 + ... + 26208.

It is an arithmetic number, because the mean of its divisors is an integer number (34269264).

Almost surely, 2^228249305 is an apocalyptic number.

It is an amenable number.

228249305 is a deficient number, since it is larger than the sum of its proper divisors (45904807).

228249305 is a wasteful number, since it uses less digits than its factorization.

228249305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42495.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 228249305 is about 15107.9219285777. The cubic root of 228249305 is about 611.1340589424.

The spelling of 228249305 in words is "two hundred twenty-eight million, two hundred forty-nine thousand, three hundred five".