228318827 has 16 divisors (see below), whose sum is σ = 259303680. Its totient is φ = 199130400.

The previous prime is 228318817. The next prime is 228318829. The reversal of 228318827 is 728813822.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 228318827 - 2¹² = 228314731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228318829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49802 + ... + 54192.

It is an arithmetic number, because the mean of its divisors is an integer number (16206480).

Almost surely, 2^228318827 is an apocalyptic number.

228318827 is a deficient number, since it is larger than the sum of its proper divisors (30984853).

228318827 is a wasteful number, since it uses less digits than its factorization.

228318827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594.

The product of its digits is 86016, while the sum is 41.

The square root of 228318827 is about 15110.2225992869. Note that the first 3 decimals coincide. The cubic root of 228318827 is about 611.1961006779.

The spelling of 228318827 in words is "two hundred twenty-eight million, three hundred eighteen thousand, eight hundred twenty-seven".