128448916 has 12 divisors (see below), whose sum is σ = 228141088. Its totient is φ = 63265752.

The previous prime is 128448913. The next prime is 128449007. The reversal of 128448916 is 619844821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128448913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239376 + ... + 239911.

Almost surely, 2^128448916 is an apocalyptic number.

It is an amenable number.

128448916 is a deficient number, since it is larger than the sum of its proper divisors (99692172).

128448916 is a wasteful number, since it uses less digits than its factorization.

128448916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479358 (or 479356 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 128448916 is about 11333.5306061262. The cubic root of 128448916 is about 504.5568978632.

The spelling of 128448916 in words is "one hundred twenty-eight million, four hundred forty-eight thousand, nine hundred sixteen".