228468668 has 24 divisors (see below), whose sum is σ = 407317680. Its totient is φ = 112101120.

The previous prime is 228468649. The next prime is 228468719. The reversal of 228468668 is 866864822.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 143903 + ... + 145481.

It is an arithmetic number, because the mean of its divisors is an integer number (16971570).

Almost surely, 2^228468668 is an apocalyptic number.

It is an amenable number.

228468668 is a deficient number, since it is larger than the sum of its proper divisors (178849012).

228468668 is a wasteful number, since it uses less digits than its factorization.

228468668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237 (or 2235 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The square root of 228468668 is about 15115.1800518552. The cubic root of 228468668 is about 611.3297766271.

The spelling of 228468668 in words is "two hundred twenty-eight million, four hundred sixty-eight thousand, six hundred sixty-eight".