308730241 has 4 divisors (see below), whose sum is σ = 309364672. Its totient is φ = 308095812.

The previous prime is 308730193. The next prime is 308730283. The reversal of 308730241 is 142037803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 308730241 - 2⁷ = 308730113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (308730641) 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 3 ways as a sum of consecutive naturals, for example, 316485 + ... + 317458.

It is an arithmetic number, because the mean of its divisors is an integer number (77341168).

Almost surely, 2^308730241 is an apocalyptic number.

It is an amenable number.

308730241 is a deficient number, since it is larger than the sum of its proper divisors (634431).

308730241 is an equidigital number, since it uses as much as digits as its factorization.

308730241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634430.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 308730241 is about 17570.7211291967. The cubic root of 308730241 is about 675.8646375619.

The spelling of 308730241 in words is "three hundred eight million, seven hundred thirty thousand, two hundred forty-one".