128450830 has 16 divisors (see below), whose sum is σ = 243380880. Its totient is φ = 48676032.

The previous prime is 128450821. The next prime is 128450867. The reversal of 128450830 is 38054821.

It is a junction number, because it is equal to n+sod(n) for n = 128450792 and 128450801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337839 + ... + 338218.

It is an arithmetic number, because the mean of its divisors is an integer number (15211305).

Almost surely, 2^128450830 is an apocalyptic number.

128450830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128450830 is a deficient number, since it is larger than the sum of its proper divisors (114930050).

128450830 is a wasteful number, since it uses less digits than its factorization.

128450830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676083.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 128450830 is about 11333.6150455184. The cubic root of 128450830 is about 504.5594039622.

The spelling of 128450830 in words is "one hundred twenty-eight million, four hundred fifty thousand, eight hundred thirty".