128934488 has 16 divisors (see below), whose sum is σ = 242970000. Its totient is φ = 64142496.

The previous prime is 128934461. The next prime is 128934499. The reversal of 128934488 is 884439821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38903 + ... + 42086.

It is an arithmetic number, because the mean of its divisors is an integer number (15185625).

Almost surely, 2^128934488 is an apocalyptic number.

It is an amenable number.

128934488 is a deficient number, since it is larger than the sum of its proper divisors (114035512).

128934488 is a wasteful number, since it uses less digits than its factorization.

128934488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81194 (or 81190 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 128934488 is about 11354.9323203619. The cubic root of 128934488 is about 505.1918860376.

The spelling of 128934488 in words is "one hundred twenty-eight million, nine hundred thirty-four thousand, four hundred eighty-eight".