128488704 has 72 divisors (see below), whose sum is σ = 343735392. Its totient is φ = 42608640.

The previous prime is 128488699. The next prime is 128488709. The reversal of 128488704 is 407884821.

It is an interprime number because it is at equal distance from previous prime (128488699) and next prime (128488709).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128488709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224739 + ... + 225309.

Almost surely, 2^128488704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128488704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171867696).

128488704 is an abundant number, since it is smaller than the sum of its proper divisors (215246688).

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

128488704 is an equidigital number, since it uses as much as digits as its factorization.

128488704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 42.

The square root of 128488704 is about 11335.2857926036. The cubic root of 128488704 is about 504.6089892263.

The spelling of 128488704 in words is "one hundred twenty-eight million, four hundred eighty-eight thousand, seven hundred four".