304223105 has 4 divisors (see below), whose sum is σ = 365067732. Its totient is φ = 243378480.

The previous prime is 304223099. The next prime is 304223107. The reversal of 304223105 is 501322403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136235584 + 167987521 = 11672^2 + 12961^2 .

It is not a de Polignac number, because 304223105 - 2¹² = 304219009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304223107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30422306 + ... + 30422315.

It is an arithmetic number, because the mean of its divisors is an integer number (91266933).

Almost surely, 2^304223105 is an apocalyptic number.

It is an amenable number.

304223105 is a deficient number, since it is larger than the sum of its proper divisors (60844627).

304223105 is an equidigital number, since it uses as much as digits as its factorization.

304223105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60844626.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 304223105 is about 17441.9925753911. The cubic root of 304223105 is about 672.5595309443.

Adding to 304223105 its reverse (501322403), we get a palindrome (805545508).

The spelling of 304223105 in words is "three hundred four million, two hundred twenty-three thousand, one hundred five".