306450730 has 8 divisors (see below), whose sum is σ = 551611332. Its totient is φ = 122580288.

The previous prime is 306450713. The next prime is 306450731. The reversal of 306450730 is 37054603.

It can be written as a sum of positive squares in 2 ways, for example, as 285373449 + 21077281 = 16893^2 + 4591^2 .

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

It is not an unprimeable number, because it can be changed into a prime (306450731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15322527 + ... + 15322546.

Almost surely, 2^306450730 is an apocalyptic number.

306450730 is a deficient number, since it is larger than the sum of its proper divisors (245160602).

306450730 is a wasteful number, since it uses less digits than its factorization.

306450730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30645080.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 306450730 is about 17505.7342033975. The cubic root of 306450730 is about 674.1971102976.

The spelling of 306450730 in words is "three hundred six million, four hundred fifty thousand, seven hundred thirty".