228515288 has 16 divisors (see below), whose sum is σ = 428981280. Its totient is φ = 114120288.

The previous prime is 228515279. The next prime is 228515297. The reversal of 228515288 is 882515822.

It is an interprime number because it is at equal distance from previous prime (228515279) and next prime (228515297).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9920 + ... + 23567.

It is an arithmetic number, because the mean of its divisors is an integer number (26811330).

Almost surely, 2^228515288 is an apocalyptic number.

It is an amenable number.

228515288 is a deficient number, since it is larger than the sum of its proper divisors (200465992).

228515288 is a wasteful number, since it uses less digits than its factorization.

228515288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34346 (or 34342 counting only the distinct ones).

The product of its digits is 102400, while the sum is 41.

The square root of 228515288 is about 15116.7221314675. The cubic root of 228515288 is about 611.3713552764.

The spelling of 228515288 in words is "two hundred twenty-eight million, five hundred fifteen thousand, two hundred eighty-eight".