128757708 has 24 divisors (see below), whose sum is σ = 333816560. Its totient is φ = 42919200.

The previous prime is 128757697. The next prime is 128757721. The reversal of 128757708 is 807757821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595993 + ... + 596208.

Almost surely, 2^128757708 is an apocalyptic number.

128757708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128757708 is an abundant number, since it is smaller than the sum of its proper divisors (205058852).

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

128757708 is a wasteful number, since it uses less digits than its factorization.

128757708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192214 (or 1192206 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The square root of 128757708 is about 11347.1453678888. The cubic root of 128757708 is about 504.9608936159.

The spelling of 128757708 in words is "one hundred twenty-eight million, seven hundred fifty-seven thousand, seven hundred eight".