128788316 has 24 divisors (see below), whose sum is σ = 237479424. Its totient is φ = 60991920.

The previous prime is 128788307. The next prime is 128788337. The reversal of 128788316 is 613887821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2681 + ... + 16271.

It is an arithmetic number, because the mean of its divisors is an integer number (9894976).

Almost surely, 2^128788316 is an apocalyptic number.

It is an amenable number.

128788316 is a deficient number, since it is larger than the sum of its proper divisors (108691108).

128788316 is a wasteful number, since it uses less digits than its factorization.

128788316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13721 (or 13719 counting only the distinct ones).

The product of its digits is 129024, while the sum is 44.

The square root of 128788316 is about 11348.4939970024. The cubic root of 128788316 is about 505.0009031778. Note that the first 3 decimals are identical.

The spelling of 128788316 in words is "one hundred twenty-eight million, seven hundred eighty-eight thousand, three hundred sixteen".