228148028 has 12 divisors (see below), whose sum is σ = 402307752. Its totient is φ = 113202960.

The previous prime is 228148021. The next prime is 228148049. The reversal of 228148028 is 820841822.

228148028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228148021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217175 + ... + 218222.

It is an arithmetic number, because the mean of its divisors is an integer number (33525646).

Almost surely, 2^228148028 is an apocalyptic number.

It is an amenable number.

228148028 is a deficient number, since it is larger than the sum of its proper divisors (174159724).

228148028 is a wasteful number, since it uses less digits than its factorization.

228148028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435532 (or 435530 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 228148028 is about 15104.5697720922. The cubic root of 228148028 is about 611.0436563587.

The spelling of 228148028 in words is "two hundred twenty-eight million, one hundred forty-eight thousand, twenty-eight".