305343009 has 12 divisors (see below), whose sum is σ = 460227456. Its totient is φ = 194711352.

The previous prime is 305343007. The next prime is 305343019. The reversal of 305343009 is 900343503.

It is not a de Polignac number, because 305343009 - 2¹ = 305343007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305343007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 737337 + ... + 737750.

It is an arithmetic number, because the mean of its divisors is an integer number (38352288).

Almost surely, 2^305343009 is an apocalyptic number.

It is an amenable number.

305343009 is a deficient number, since it is larger than the sum of its proper divisors (154884447).

305343009 is a wasteful number, since it uses less digits than its factorization.

305343009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475116 (or 1475113 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 305343009 is about 17474.0667561962. The cubic root of 305343009 is about 673.3837941847.

The spelling of 305343009 in words is "three hundred five million, three hundred forty-three thousand, nine".