228889356 has 12 divisors (see below), whose sum is σ = 534075192. Its totient is φ = 76296448.

The previous prime is 228889313. The next prime is 228889361. The reversal of 228889356 is 653988822.

228889356 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 228889299 and 228889308.

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, 9537045 + ... + 9537068.

It is an arithmetic number, because the mean of its divisors is an integer number (44506266).

Almost surely, 2^228889356 is an apocalyptic number.

It is an amenable number.

228889356 is an abundant number, since it is smaller than the sum of its proper divisors (305185836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228889356 is a wasteful number, since it uses less digits than its factorization.

228889356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19074120 (or 19074118 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 228889356 is about 15129.0897280702. The cubic root of 228889356 is about 611.7047681061.

The spelling of 228889356 in words is "two hundred twenty-eight million, eight hundred eighty-nine thousand, three hundred fifty-six".