128258030 has 32 divisors (see below), whose sum is σ = 246273696. Its totient is φ = 47924224.

The previous prime is 128258029. The next prime is 128258057. The reversal of 128258030 is 30852821.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 128257984 and 128258002.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 20537 + ... + 26043.

It is an arithmetic number, because the mean of its divisors is an integer number (7696053).

Almost surely, 2^128258030 is an apocalyptic number.

128258030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128258030 is a deficient number, since it is larger than the sum of its proper divisors (118015666).

128258030 is a wasteful number, since it uses less digits than its factorization.

128258030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 128258030 is about 11325.1061805177. The cubic root of 128258030 is about 504.3068358148.

The spelling of 128258030 in words is "one hundred twenty-eight million, two hundred fifty-eight thousand, thirty".