128030386 has 8 divisors (see below), whose sum is σ = 209504304. Its totient is φ = 58195620.

The previous prime is 128030377. The next prime is 128030387. The reversal of 128030386 is 683030821.

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

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 3 ways as a sum of consecutive naturals, for example, 2909760 + ... + 2909803.

It is an arithmetic number, because the mean of its divisors is an integer number (26188038).

Almost surely, 2^128030386 is an apocalyptic number.

128030386 is a deficient number, since it is larger than the sum of its proper divisors (81473918).

128030386 is a wasteful number, since it uses less digits than its factorization.

128030386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5819576.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 128030386 is about 11315.0513034630. The cubic root of 128030386 is about 504.0082959288.

The spelling of 128030386 in words is "one hundred twenty-eight million, thirty thousand, three hundred eighty-six".