228219878 has 8 divisors (see below), whose sum is σ = 342460440. Its totient is φ = 114066400.

The previous prime is 228219863. The next prime is 228219907. The reversal of 228219878 is 878912822.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 14768 + ... + 25971.

It is an arithmetic number, because the mean of its divisors is an integer number (42807555).

Almost surely, 2^228219878 is an apocalyptic number.

228219878 is a deficient number, since it is larger than the sum of its proper divisors (114240562).

228219878 is a wasteful number, since it uses less digits than its factorization.

228219878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43542.

The product of its digits is 258048, while the sum is 47.

The square root of 228219878 is about 15106.9480041470. The cubic root of 228219878 is about 611.1077943646.

The spelling of 228219878 in words is "two hundred twenty-eight million, two hundred nineteen thousand, eight hundred seventy-eight".