228244144 has 20 divisors (see below), whose sum is σ = 443654640. Its totient is φ = 113752640.

The previous prime is 228244139. The next prime is 228244151. The reversal of 228244144 is 441442822.

It is a nude number because it is divisible by every one of its digits.

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, 17959 + ... + 27910.

It is an arithmetic number, because the mean of its divisors is an integer number (22182732).

Almost surely, 2^228244144 is an apocalyptic number.

It is an amenable number.

228244144 is a deficient number, since it is larger than the sum of its proper divisors (215410496).

228244144 is a wasteful number, since it uses less digits than its factorization.

228244144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46188 (or 46182 counting only the distinct ones).

The product of its digits is 16384, while the sum is 31.

The square root of 228244144 is about 15107.7511231818. The cubic root of 228244144 is about 611.1294527412.

Adding to 228244144 its reverse (441442822), we get a palindrome (669686966).

The spelling of 228244144 in words is "two hundred twenty-eight million, two hundred forty-four thousand, one hundred forty-four".