304300421 has 2 divisors, whose sum is σ = 304300422. Its totient is φ = 304300420.

The previous prime is 304300411. The next prime is 304300441. The reversal of 304300421 is 124003403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268468225 + 35832196 = 16385^2 + 5986^2 .

It is an emirp because it is prime and its reverse (124003403) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304300421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 304300421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304300411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152150210 + 152150211.

It is an arithmetic number, because the mean of its divisors is an integer number (152150211).

Almost surely, 2^304300421 is an apocalyptic number.

It is an amenable number.

304300421 is a deficient number, since it is larger than the sum of its proper divisors (1).

304300421 is an equidigital number, since it uses as much as digits as its factorization.

304300421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 304300421 is about 17444.2088098028. The cubic root of 304300421 is about 672.6165014235.

Adding to 304300421 its reverse (124003403), we get a palindrome (428303824).

The spelling of 304300421 in words is "three hundred four million, three hundred thousand, four hundred twenty-one".