228364288 has 52 divisors (see below), whose sum is σ = 461317120. Its totient is φ = 113025024.

The previous prime is 228364267. The next prime is 228364361. The reversal of 228364288 is 882463822.

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, 519973 + ... + 520411.

Almost surely, 2^228364288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228364288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230658560).

228364288 is an abundant number, since it is smaller than the sum of its proper divisors (232952832).

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

228364288 is an equidigital number, since it uses as much as digits as its factorization.

228364288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 568 counting only the distinct ones).

The product of its digits is 294912, while the sum is 43.

The square root of 228364288 is about 15111.7268371288. The cubic root of 228364288 is about 611.2366634622.

The spelling of 228364288 in words is "two hundred twenty-eight million, three hundred sixty-four thousand, two hundred eighty-eight".