228774128 has 20 divisors (see below), whose sum is σ = 483545688. Its totient is φ = 103988160.

The previous prime is 228774101. The next prime is 228774131. The reversal of 228774128 is 821477822.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649751 + ... + 650102.

Almost surely, 2^228774128 is an apocalyptic number.

It is an amenable number.

228774128 is an abundant number, since it is smaller than the sum of its proper divisors (254771560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228774128 is a wasteful number, since it uses less digits than its factorization.

228774128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299872 (or 1299866 counting only the distinct ones).

The product of its digits is 100352, while the sum is 41.

The square root of 228774128 is about 15125.2810882972. The cubic root of 228774128 is about 611.6021022743.

The spelling of 228774128 in words is "two hundred twenty-eight million, seven hundred seventy-four thousand, one hundred twenty-eight".