128630708 has 12 divisors (see below), whose sum is σ = 225255072. Its totient is φ = 64272120.

The previous prime is 128630701. The next prime is 128630713. The reversal of 128630708 is 807036821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128630701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3578 + ... + 16433.

It is an arithmetic number, because the mean of its divisors is an integer number (18771256).

Almost surely, 2^128630708 is an apocalyptic number.

It is an amenable number.

128630708 is a deficient number, since it is larger than the sum of its proper divisors (96624364).

128630708 is a wasteful number, since it uses less digits than its factorization.

128630708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21622 (or 21620 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 128630708 is about 11341.5478661424. The cubic root of 128630708 is about 504.7948164908.

The spelling of 128630708 in words is "one hundred twenty-eight million, six hundred thirty thousand, seven hundred eight".