304228193 has 2 divisors, whose sum is σ = 304228194. Its totient is φ = 304228192.

The previous prime is 304228189. The next prime is 304228201. The reversal of 304228193 is 391822403.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257538304 + 46689889 = 16048^2 + 6833^2 .

It is a cyclic number.

It is not a de Polignac number, because 304228193 - 2² = 304228189 is a prime.

It is a super-3 number, since 3×304228193³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is equal to p_16468700 and since 304228193 and 16468700 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (304228693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152114096 + 152114097.

It is an arithmetic number, because the mean of its divisors is an integer number (152114097).

Almost surely, 2^304228193 is an apocalyptic number.

It is an amenable number.

304228193 is a deficient number, since it is larger than the sum of its proper divisors (1).

304228193 is an equidigital number, since it uses as much as digits as its factorization.

304228193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 304228193 is about 17442.1384296766. The cubic root of 304228193 is about 672.5632803459.

The spelling of 304228193 in words is "three hundred four million, two hundred twenty-eight thousand, one hundred ninety-three".