128933484 has 24 divisors (see below), whose sum is σ = 303607920. Its totient is φ = 42583104.

The previous prime is 128933459. The next prime is 128933537. The reversal of 128933484 is 484339821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47979 + ... + 50594.

It is an arithmetic number, because the mean of its divisors is an integer number (12650330).

Almost surely, 2^128933484 is an apocalyptic number.

It is an amenable number.

128933484 is an abundant number, since it is smaller than the sum of its proper divisors (174674436).

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

128933484 is a wasteful number, since it uses less digits than its factorization.

128933484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98689 (or 98687 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 128933484 is about 11354.8881104131. Note that the first 3 decimals coincide. The cubic root of 128933484 is about 505.1905747413.

The spelling of 128933484 in words is "one hundred twenty-eight million, nine hundred thirty-three thousand, four hundred eighty-four".