128330734 has 8 divisors (see below), whose sum is σ = 219995568. Its totient is φ = 54998880.

The previous prime is 128330717. The next prime is 128330743. The reversal of 128330734 is 437033821.

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

It is a junction number, because it is equal to n+sod(n) for n = 128330696 and 128330705.

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 3 ways as a sum of consecutive naturals, for example, 4583227 + ... + 4583254.

It is an arithmetic number, because the mean of its divisors is an integer number (27499446).

Almost surely, 2^128330734 is an apocalyptic number.

128330734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128330734 is a deficient number, since it is larger than the sum of its proper divisors (91664834).

128330734 is an equidigital number, since it uses as much as digits as its factorization.

128330734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9166490.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 128330734 is about 11328.3155852933. The cubic root of 128330734 is about 504.4021078182.

The spelling of 128330734 in words is "one hundred twenty-eight million, three hundred thirty thousand, seven hundred thirty-four".