128205488 has 20 divisors (see below), whose sum is σ = 248850888. Its totient is φ = 63985920.

The previous prime is 128205487. The next prime is 128205523. The reversal of 128205488 is 884502821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128205487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2120 + ... + 16152.

Almost surely, 2^128205488 is an apocalyptic number.

It is an amenable number.

128205488 is a deficient number, since it is larger than the sum of its proper divisors (120645400).

128205488 is a wasteful number, since it uses less digits than its factorization.

128205488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14612 (or 14606 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 128205488 is about 11322.7862295462. The cubic root of 128205488 is about 504.2379618715.

The spelling of 128205488 in words is "one hundred twenty-eight million, two hundred five thousand, four hundred eighty-eight".