228227128 has 16 divisors (see below), whose sum is σ = 431297280. Its totient is φ = 113214528.

The previous prime is 228227123. The next prime is 228227147. The reversal of 228227128 is 821722822.

228227128 is digitally balanced in base 2 and base 3, because in such bases 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 = 228227093 and 228227102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228227123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111301 + ... + 113332.

It is an arithmetic number, because the mean of its divisors is an integer number (26956080).

Almost surely, 2^228227128 is an apocalyptic number.

It is an amenable number.

228227128 is a deficient number, since it is larger than the sum of its proper divisors (203070152).

228227128 is a wasteful number, since it uses less digits than its factorization.

228227128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224766 (or 224762 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 228227128 is about 15107.1879580549. The cubic root of 228227128 is about 611.1142654407.

The spelling of 228227128 in words is "two hundred twenty-eight million, two hundred twenty-seven thousand, one hundred twenty-eight".