128208288 has 96 divisors (see below), whose sum is σ = 383818176. Its totient is φ = 37122048.

The previous prime is 128208287. The next prime is 128208317. The reversal of 128208288 is 882802821.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×128208288² = 32874730223781888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (128208287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18195 + ... + 24237.

It is an arithmetic number, because the mean of its divisors is an integer number (3998106).

Almost surely, 2^128208288 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 128208288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191909088).

128208288 is an abundant number, since it is smaller than the sum of its proper divisors (255609888).

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

128208288 is a wasteful number, since it uses less digits than its factorization.

128208288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086 (or 6078 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 39.

The square root of 128208288 is about 11322.9098733497. The cubic root of 128208288 is about 504.2416326868.

The spelling of 128208288 in words is "one hundred twenty-eight million, two hundred eight thousand, two hundred eighty-eight".