228135288 has 16 divisors (see below), whose sum is σ = 570338280. Its totient is φ = 76045088.

The previous prime is 228135263. The next prime is 228135301. The reversal of 228135288 is 882531822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4752795 + ... + 4752842.

Almost surely, 2^228135288 is an apocalyptic number.

It is an amenable number.

228135288 is an abundant number, since it is smaller than the sum of its proper divisors (342202992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228135288 is a wasteful number, since it uses less digits than its factorization.

228135288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9505646 (or 9505642 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 228135288 is about 15104.1480395287. The cubic root of 228135288 is about 611.0322823966.

The spelling of 228135288 in words is "two hundred twenty-eight million, one hundred thirty-five thousand, two hundred eighty-eight".