228307216 has 10 divisors (see below), whose sum is σ = 442345262. Its totient is φ = 114153600.

The previous prime is 228307213. The next prime is 228307231. The reversal of 228307216 is 612703822.

It can be written as a sum of positive squares in only one way, i.e., 228130816 + 176400 = 15104^2 + 420^2 .

It is not an unprimeable number, because it can be changed into a prime (228307213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7134585 + ... + 7134616.

Almost surely, 2^228307216 is an apocalyptic number.

It is an amenable number.

228307216 is a deficient number, since it is larger than the sum of its proper divisors (214038046).

228307216 is a wasteful number, since it uses less digits than its factorization.

228307216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14269209 (or 14269203 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 228307216 is about 15109.8383843111. The cubic root of 228307216 is about 611.1857398471.

The spelling of 228307216 in words is "two hundred twenty-eight million, three hundred seven thousand, two hundred sixteen".