228542285 has 8 divisors (see below), whose sum is σ = 274337280. Its totient is φ = 182776144.

The previous prime is 228542269. The next prime is 228542287. The reversal of 228542285 is 582245822.

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 228542285 - 2⁴ = 228542269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228542287) by changing a digit.

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, 18656 + ... + 28374.

It is an arithmetic number, because the mean of its divisors is an integer number (34292160).

Almost surely, 2^228542285 is an apocalyptic number.

It is an amenable number.

228542285 is a deficient number, since it is larger than the sum of its proper divisors (45794995).

228542285 is an equidigital number, since it uses as much as digits as its factorization.

228542285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14427.

The product of its digits is 102400, while the sum is 38.

The square root of 228542285 is about 15117.6150566152. The cubic root of 228542285 is about 611.3954303141.

The spelling of 228542285 in words is "two hundred twenty-eight million, five hundred forty-two thousand, two hundred eighty-five".