304520222 has 8 divisors (see below), whose sum is σ = 456926400. Its totient is φ = 152211424.

The previous prime is 304520189. The next prime is 304520231. The reversal of 304520222 is 222025403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 304520194 and 304520203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15947 + ... + 29382.

It is an arithmetic number, because the mean of its divisors is an integer number (57115800).

Almost surely, 2^304520222 is an apocalyptic number.

304520222 is a deficient number, since it is larger than the sum of its proper divisors (152406178).

304520222 is a wasteful number, since it uses less digits than its factorization.

304520222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48690.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 304520222 is about 17450.5077863081. The cubic root of 304520222 is about 672.7784096207.

Adding to 304520222 its reverse (222025403), we get a palindrome (526545625).

The spelling of 304520222 in words is "three hundred four million, five hundred twenty thousand, two hundred twenty-two".