301728730 has 16 divisors (see below), whose sum is σ = 544631040. Its totient is φ = 120353872.

The previous prime is 301728719. The next prime is 301728737. The reversal of 301728730 is 37827103.

It is a junction number, because it is equal to n+sod(n) for n = 301728692 and 301728701.

It is not an unprimeable number, because it can be changed into a prime (301728737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38434 + ... + 45613.

It is an arithmetic number, because the mean of its divisors is an integer number (34039440).

Almost surely, 2^301728730 is an apocalyptic number.

301728730 is a deficient number, since it is larger than the sum of its proper divisors (242902310).

301728730 is a wasteful number, since it uses less digits than its factorization.

301728730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84413.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 301728730 is about 17370.3405263109. The cubic root of 301728730 is about 670.7163423244.

The spelling of 301728730 in words is "three hundred one million, seven hundred twenty-eight thousand, seven hundred thirty".