228710228 has 12 divisors (see below), whose sum is σ = 406804692. Its totient is φ = 112480320.

The previous prime is 228710213. The next prime is 228710263. The reversal of 228710228 is 822017822.

It can be written as a sum of positive squares in 2 ways, for example, as 6461764 + 222248464 = 2542^2 + 14908^2 .

It is a junction number, because it is equal to n+sod(n) for n = 228710194 and 228710203.

It is a congruent number.

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, 468425 + ... + 468912.

It is an arithmetic number, because the mean of its divisors is an integer number (33900391).

Almost surely, 2^228710228 is an apocalyptic number.

It is an amenable number.

228710228 is a deficient number, since it is larger than the sum of its proper divisors (178094464).

228710228 is a wasteful number, since it uses less digits than its factorization.

228710228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937402 (or 937400 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 228710228 is about 15123.1685833360. The cubic root of 228710228 is about 611.5451537987.

The spelling of 228710228 in words is "two hundred twenty-eight million, seven hundred ten thousand, two hundred twenty-eight".