305030849 has 8 divisors (see below), whose sum is σ = 314095080. Its totient is φ = 296009856.

The previous prime is 305030827. The next prime is 305030851. The reversal of 305030849 is 948030503.

It can be written as a sum of positive squares in 4 ways, for example, as 9878449 + 295152400 = 3143^2 + 17180^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 305030849 - 2¹⁶ = 304965313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305033849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3797 + ... + 24989.

It is an arithmetic number, because the mean of its divisors is an integer number (39261885).

Almost surely, 2^305030849 is an apocalyptic number.

It is an amenable number.

305030849 is a deficient number, since it is larger than the sum of its proper divisors (9064231).

305030849 is a wasteful number, since it uses less digits than its factorization.

305030849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21619.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 305030849 is about 17465.1323785421. The cubic root of 305030849 is about 673.1542434261.

The spelling of 305030849 in words is "three hundred five million, thirty thousand, eight hundred forty-nine".