228144256 has 16 divisors (see below), whose sum is σ = 454506390. Its totient is φ = 114072064.

The previous prime is 228144173. The next prime is 228144281. The reversal of 228144256 is 652441822.

It can be written as a sum of positive squares in only one way, i.e., 131790400 + 96353856 = 11480^2 + 9816^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 891061 + ... + 891316.

Almost surely, 2^228144256 is an apocalyptic number.

It is an amenable number.

228144256 is a deficient number, since it is larger than the sum of its proper divisors (226362134).

228144256 is an equidigital number, since it uses as much as digits as its factorization.

228144256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782391 (or 1782379 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 228144256 is about 15104.4449087015. Note that the first 3 decimals coincide. The cubic root of 228144256 is about 611.0402888530.

The spelling of 228144256 in words is "two hundred twenty-eight million, one hundred forty-four thousand, two hundred fifty-six".