228468189 has 16 divisors (see below), whose sum is σ = 307910592. Its totient is φ = 150678528.

The previous prime is 228468169. The next prime is 228468197. The reversal of 228468189 is 981864822.

It is not a de Polignac number, because 228468189 - 2⁵ = 228468157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228468169) 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 15 ways as a sum of consecutive naturals, for example, 113062 + ... + 115064.

It is an arithmetic number, because the mean of its divisors is an integer number (19244412).

Almost surely, 2^228468189 is an apocalyptic number.

It is an amenable number.

228468189 is a deficient number, since it is larger than the sum of its proper divisors (79442403).

228468189 is a wasteful number, since it uses less digits than its factorization.

228468189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396.

The product of its digits is 442368, while the sum is 48.

The square root of 228468189 is about 15115.1642068487. The cubic root of 228468189 is about 611.3293493954.

The spelling of 228468189 in words is "two hundred twenty-eight million, four hundred sixty-eight thousand, one hundred eighty-nine".