228489648 has 20 divisors (see below), whose sum is σ = 590265048. Its totient is φ = 76163200.

The previous prime is 228489629. The next prime is 228489683. The reversal of 228489648 is 846984822.

It is a self number, because there is not a number n which added to its sum of digits gives 228489648.

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, 2380053 + ... + 2380148.

Almost surely, 2^228489648 is an apocalyptic number.

It is an amenable number.

228489648 is an abundant number, since it is smaller than the sum of its proper divisors (361775400).

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

228489648 is a wasteful number, since it uses less digits than its factorization.

228489648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760212 (or 4760206 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 228489648 is about 15115.8740402267. The cubic root of 228489648 is about 611.3484886110.

The spelling of 228489648 in words is "two hundred twenty-eight million, four hundred eighty-nine thousand, six hundred forty-eight".