228137648 has 20 divisors (see below), whose sum is σ = 444491640. Its totient is φ = 113430144.

The previous prime is 228137647. The next prime is 228137659. The reversal of 228137648 is 846731822.

228137648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228137647) by changing a digit.

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, 36965 + ... + 42692.

It is an arithmetic number, because the mean of its divisors is an integer number (22224582).

Almost surely, 2^228137648 is an apocalyptic number.

It is an amenable number.

228137648 is a deficient number, since it is larger than the sum of its proper divisors (216353992).

228137648 is a wasteful number, since it uses less digits than its factorization.

228137648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79844 (or 79838 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 228137648 is about 15104.2261635610. The cubic root of 228137648 is about 611.0343893791.

The spelling of 228137648 in words is "two hundred twenty-eight million, one hundred thirty-seven thousand, six hundred forty-eight".