228684878 has 4 divisors (see below), whose sum is σ = 343027320. Its totient is φ = 114342438.

The previous prime is 228684857. The next prime is 228684917. The reversal of 228684878 is 878486822.

It is a happy number.

228684878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57171218 + ... + 57171221.

It is an arithmetic number, because the mean of its divisors is an integer number (85756830).

Almost surely, 2^228684878 is an apocalyptic number.

228684878 is a deficient number, since it is larger than the sum of its proper divisors (114342442).

228684878 is a wasteful number, since it uses less digits than its factorization.

228684878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114342441.

The product of its digits is 2752512, while the sum is 53.

The square root of 228684878 is about 15122.3304420979. The cubic root of 228684878 is about 611.5225586243.

The spelling of 228684878 in words is "two hundred twenty-eight million, six hundred eighty-four thousand, eight hundred seventy-eight".