228767211 has 12 divisors (see below), whose sum is σ = 331120920. Its totient is φ = 152197920.

The previous prime is 228767207. The next prime is 228767213. The reversal of 228767211 is 112767822.

It is not a de Polignac number, because 228767211 - 2² = 228767207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228767213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21466 + ... + 30303.

It is an arithmetic number, because the mean of its divisors is an integer number (27593410).

Almost surely, 2^228767211 is an apocalyptic number.

228767211 is a deficient number, since it is larger than the sum of its proper divisors (102353709).

228767211 is a wasteful number, since it uses less digits than its factorization.

228767211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52266 (or 52263 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 228767211 is about 15125.0524296612. The cubic root of 228767211 is about 611.5959382697.

The spelling of 228767211 in words is "two hundred twenty-eight million, seven hundred sixty-seven thousand, two hundred eleven".