228610285 has 8 divisors (see below), whose sum is σ = 274811256. Its totient is φ = 182568960.

The previous prime is 228610267. The next prime is 228610289. The reversal of 228610285 is 582016822.

It can be written as a sum of positive squares in 4 ways, for example, as 153908836 + 74701449 = 12406^2 + 8643^2 .

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

It is not a de Polignac number, because 228610285 - 2¹⁹ = 228085997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228610285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228610289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36736 + ... + 42505.

It is an arithmetic number, because the mean of its divisors is an integer number (34351407).

Almost surely, 2^228610285 is an apocalyptic number.

It is an amenable number.

228610285 is a deficient number, since it is larger than the sum of its proper divisors (46200971).

228610285 is an equidigital number, since it uses as much as digits as its factorization.

228610285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79823.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 228610285 is about 15119.8639213453. The cubic root of 228610285 is about 611.4560620794.

The spelling of 228610285 in words is "two hundred twenty-eight million, six hundred ten thousand, two hundred eighty-five".