128590228 has 24 divisors (see below), whose sum is σ = 242789120. Its totient is φ = 59240160.

The previous prime is 128590223. The next prime is 128590237. The reversal of 128590228 is 822095821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128590223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30853 + ... + 34771.

Almost surely, 2^128590228 is an apocalyptic number.

It is an amenable number.

128590228 is a deficient number, since it is larger than the sum of its proper divisors (114198892).

128590228 is a wasteful number, since it uses less digits than its factorization.

128590228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567 (or 4565 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 128590228 is about 11339.7631368561. The cubic root of 128590228 is about 504.7418580685.

The spelling of 128590228 in words is "one hundred twenty-eight million, five hundred ninety thousand, two hundred twenty-eight".