228971878 has 32 divisors (see below), whose sum is σ = 378574560. Its totient is φ = 103380480.

The previous prime is 228971867. The next prime is 228971881. The reversal of 228971878 is 878179822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177825 + ... + 179107.

It is an arithmetic number, because the mean of its divisors is an integer number (11830455).

Almost surely, 2^228971878 is an apocalyptic number.

228971878 is a deficient number, since it is larger than the sum of its proper divisors (149602682).

228971878 is a wasteful number, since it uses less digits than its factorization.

228971878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512.

The product of its digits is 903168, while the sum is 52.

The square root of 228971878 is about 15131.8167448592. The cubic root of 228971878 is about 611.7782723769.

The spelling of 228971878 in words is "two hundred twenty-eight million, nine hundred seventy-one thousand, eight hundred seventy-eight".