128450788 has 24 divisors (see below), whose sum is σ = 229219200. Its totient is φ = 62965728.

The previous prime is 128450779. The next prime is 128450801. The reversal of 128450788 is 887054821.

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, 169306 + ... + 170062.

It is an arithmetic number, because the mean of its divisors is an integer number (9550800).

Almost surely, 2^128450788 is an apocalyptic number.

It is an amenable number.

128450788 is a deficient number, since it is larger than the sum of its proper divisors (100768412).

128450788 is a wasteful number, since it uses less digits than its factorization.

128450788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539 (or 1537 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 128450788 is about 11333.6131926231. The cubic root of 128450788 is about 504.5593489697.

The spelling of 128450788 in words is "one hundred twenty-eight million, four hundred fifty thousand, seven hundred eighty-eight".