304228423 has 2 divisors, whose sum is σ = 304228424. Its totient is φ = 304228422.

The previous prime is 304228403. The next prime is 304228469. The reversal of 304228423 is 324822403.

It is a weak prime.

It is an emirp because it is prime and its reverse (324822403) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304228423 is a prime.

It is a super-2 number, since 2×304228423² = 185109866722133858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304228391 and 304228400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304228403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152114211 + 152114212.

It is an arithmetic number, because the mean of its divisors is an integer number (152114212).

Almost surely, 2^304228423 is an apocalyptic number.

304228423 is a deficient number, since it is larger than the sum of its proper divisors (1).

304228423 is an equidigital number, since it uses as much as digits as its factorization.

304228423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 304228423 is about 17442.1450229036. The cubic root of 304228423 is about 672.5634498344.

The spelling of 304228423 in words is "three hundred four million, two hundred twenty-eight thousand, four hundred twenty-three".