228872144 has 40 divisors (see below), whose sum is σ = 458140320. Its totient is φ = 110694528.

The previous prime is 228872143. The next prime is 228872153. The reversal of 228872144 is 441278822.

228872144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 228872098 and 228872107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228872143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72062 + ... + 75170.

It is an arithmetic number, because the mean of its divisors is an integer number (11453508).

Almost surely, 2^228872144 is an apocalyptic number.

It is an amenable number.

228872144 is an abundant number, since it is smaller than the sum of its proper divisors (229268176).

228872144 is a wasteful number, since it uses less digits than its factorization.

228872144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267 (or 3261 counting only the distinct ones).

The product of its digits is 57344, while the sum is 38.

The square root of 228872144 is about 15128.5208794515. The cubic root of 228872144 is about 611.6894347494.

The spelling of 228872144 in words is "two hundred twenty-eight million, eight hundred seventy-two thousand, one hundred forty-four".