108128228 has 54 divisors (see below), whose sum is σ = 219212406. Its totient is φ = 46485504.

The previous prime is 108128219. The next prime is 108128233. The reversal of 108128228 is 822821801.

It can be written as a sum of positive squares in 9 ways, for example, as 43454464 + 64673764 = 6592^2 + 8042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 108128194 and 108128203.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1114676 + ... + 1114772.

It is an arithmetic number, because the mean of its divisors is an integer number (4059489).

Almost surely, 2^108128228 is an apocalyptic number.

It is an amenable number.

108128228 is an abundant number, since it is smaller than the sum of its proper divisors (111084178).

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

108128228 is a wasteful number, since it uses less digits than its factorization.

108128228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 108128228 is about 10398.4723878077. The cubic root of 108128228 is about 476.4087125881.

The spelling of 108128228 in words is "one hundred eight million, one hundred twenty-eight thousand, two hundred twenty-eight".