128850030 has 96 divisors (see below), whose sum is σ = 347203584. Its totient is φ = 33133248.

The previous prime is 128850011. The next prime is 128850031. The reversal of 128850030 is 30058821.

It is a happy number.

128850030 is a `hidden beast` number, since 128 + 8 + 500 + 30 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 128849976 and 128850003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128850031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 350907 + ... + 351273.

It is an arithmetic number, because the mean of its divisors is an integer number (3616704).

Almost surely, 2^128850030 is an apocalyptic number.

128850030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128850030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173601792).

128850030 is an abundant number, since it is smaller than the sum of its proper divisors (218353554).

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

128850030 is a wasteful number, since it uses less digits than its factorization.

128850030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 128850030 is about 11351.2127105433. The cubic root of 128850030 is about 505.0815539955.

The spelling of 128850030 in words is "one hundred twenty-eight million, eight hundred fifty thousand, thirty".