128488 has 8 divisors (see below), whose sum is σ = 240930. Its totient is φ = 64240.

The previous prime is 128483. The next prime is 128489. The reversal of 128488 is 884821.

It can be written as a sum of positive squares in only one way, i.e., 128164 + 324 = 358^2 + 18^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×128488² = 33018332288, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (128483) by changing a digit.

128488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 8023 + ... + 8038.

2¹²⁸⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

128488 is a deficient number, since it is larger than the sum of its proper divisors (112442).

128488 is a wasteful number, since it uses less digits than its factorization.

128488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16067 (or 16063 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 128488 is about 358.4522283373. The cubic root of 128488 is about 50.4608067627.

It can be divided in two parts, 128 and 488, that added together give a palindrome (616).

The spelling of 128488 in words is "one hundred twenty-eight thousand, four hundred eighty-eight".