30304481 has 2 divisors, whose sum is σ = 30304482. Its totient is φ = 30304480.

The previous prime is 30304459. The next prime is 30304493. The reversal of 30304481 is 18440303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 3936256 = 5135^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 30304481 - 2¹⁰ = 30303457 is a prime.

It is a super-2 number, since 2×30304481² = 1836723137358722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30304451) 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 as a sum of consecutive naturals, namely, 15152240 + 15152241.

It is an arithmetic number, because the mean of its divisors is an integer number (15152241).

Almost surely, 2^30304481 is an apocalyptic number.

It is an amenable number.

30304481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30304481 is an equidigital number, since it uses as much as digits as its factorization.

30304481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 30304481 is about 5504.9505901507. The cubic root of 30304481 is about 311.7709288597.

Adding to 30304481 its reverse (18440303), we get a palindrome (48744784).

The spelling of 30304481 in words is "thirty million, three hundred four thousand, four hundred eighty-one".