228065878 has 16 divisors (see below), whose sum is σ = 346276944. Its totient is φ = 112645600.

The previous prime is 228065867. The next prime is 228065921. The reversal of 228065878 is 878560822.

It is a happy number.

228065878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111501 + ... + 113527.

It is an arithmetic number, because the mean of its divisors is an integer number (21642309).

Almost surely, 2^228065878 is an apocalyptic number.

228065878 is a deficient number, since it is larger than the sum of its proper divisors (118211066).

228065878 is a wasteful number, since it uses less digits than its factorization.

228065878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687.

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 228065878 is about 15101.8501515543. The cubic root of 228065878 is about 610.9703073976.

The spelling of 228065878 in words is "two hundred twenty-eight million, sixty-five thousand, eight hundred seventy-eight".