304223422 has 4 divisors (see below), whose sum is σ = 456335136. Its totient is φ = 152111710.

The previous prime is 304223389. The next prime is 304223431. The reversal of 304223422 is 224322403.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 304223393 and 304223402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76055854 + ... + 76055857.

It is an arithmetic number, because the mean of its divisors is an integer number (114083784).

Almost surely, 2^304223422 is an apocalyptic number.

304223422 is a deficient number, since it is larger than the sum of its proper divisors (152111714).

304223422 is a wasteful number, since it uses less digits than its factorization.

304223422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152111713.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 304223422 is about 17442.0016626533. The cubic root of 304223422 is about 672.5597645462.

Adding to 304223422 its reverse (224322403), we get a palindrome (528545825).

The spelling of 304223422 in words is "three hundred four million, two hundred twenty-three thousand, four hundred twenty-two".