304463381 has 2 divisors, whose sum is σ = 304463382. Its totient is φ = 304463380.

The previous prime is 304463371. The next prime is 304463413. The reversal of 304463381 is 183364403.

It is an a-pointer prime, because the next prime (304463413) can be obtained adding 304463381 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205779025 + 98684356 = 14345^2 + 9934^2 .

It is a cyclic number.

It is not a de Polignac number, because 304463381 - 2⁶ = 304463317 is a prime.

It is a super-2 number, since 2×304463381² = 185395900739902322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304463371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152231690 + 152231691.

It is an arithmetic number, because the mean of its divisors is an integer number (152231691).

Almost surely, 2^304463381 is an apocalyptic number.

It is an amenable number.

304463381 is a deficient number, since it is larger than the sum of its proper divisors (1).

304463381 is an equidigital number, since it uses as much as digits as its factorization.

304463381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 304463381 is about 17448.8790757458. The cubic root of 304463381 is about 672.7365472917.

The spelling of 304463381 in words is "three hundred four million, four hundred sixty-three thousand, three hundred eighty-one".