128086788 has 24 divisors (see below), whose sum is σ = 306159840. Its totient is φ = 41654080.

The previous prime is 128086787. The next prime is 128086801. The reversal of 128086788 is 887680821.

It is a super-3 number, since 3×128086788³ (a number of 25 digits) contains 333 as substring.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (128086787) 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, 129678 + ... + 130661.

It is an arithmetic number, because the mean of its divisors is an integer number (12756660).

Almost surely, 2^128086788 is an apocalyptic number.

It is an amenable number.

128086788 is an abundant number, since it is smaller than the sum of its proper divisors (178073052).

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

128086788 is a wasteful number, since it uses less digits than its factorization.

128086788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260387 (or 260385 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 48.

The square root of 128086788 is about 11317.5433730117. The cubic root of 128086788 is about 504.0822963372.

The spelling of 128086788 in words is "one hundred twenty-eight million, eighty-six thousand, seven hundred eighty-eight".