128305370 has 8 divisors (see below), whose sum is σ = 230949684. Its totient is φ = 51322144.

The previous prime is 128305369. The next prime is 128305391. The reversal of 128305370 is 73503821.

It can be written as a sum of positive squares in 2 ways, for example, as 117527281 + 10778089 = 10841^2 + 3283^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6415259 + ... + 6415278.

Almost surely, 2^128305370 is an apocalyptic number.

128305370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128305370 is a deficient number, since it is larger than the sum of its proper divisors (102644314).

128305370 is a wasteful number, since it uses less digits than its factorization.

128305370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830544.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 128305370 is about 11327.1960343238. The cubic root of 128305370 is about 504.3688746827.

The spelling of 128305370 in words is "one hundred twenty-eight million, three hundred five thousand, three hundred seventy".