128030389 has 8 divisors (see below), whose sum is σ = 132802560. Its totient is φ = 123282096.

The previous prime is 128030387. The next prime is 128030401. The reversal of 128030389 is 983030821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128030389 - 2¹ = 128030387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128030387) 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, 5344 + ... + 16870.

It is an arithmetic number, because the mean of its divisors is an integer number (16600320).

Almost surely, 2^128030389 is an apocalyptic number.

It is an amenable number.

128030389 is a deficient number, since it is larger than the sum of its proper divisors (4772171).

128030389 is a wasteful number, since it uses less digits than its factorization.

128030389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11939.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 128030389 is about 11315.0514360298. The cubic root of 128030389 is about 504.0082998654.

The spelling of 128030389 in words is "one hundred twenty-eight million, thirty thousand, three hundred eighty-nine".