304400222 has 16 divisors (see below), whose sum is σ = 538662912. Its totient is φ = 126248760.

The previous prime is 304400209. The next prime is 304400231. The reversal of 304400222 is 222004403.

304400222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 304400222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350258 + ... + 351125.

It is an arithmetic number, because the mean of its divisors is an integer number (33666432).

Almost surely, 2^304400222 is an apocalyptic number.

304400222 is a deficient number, since it is larger than the sum of its proper divisors (234262690).

304400222 is a wasteful number, since it uses less digits than its factorization.

304400222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701423.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 304400222 is about 17447.0691521527. The cubic root of 304400222 is about 672.6900257628.

Adding to 304400222 its reverse (222004403), we get a palindrome (526404625).

The spelling of 304400222 in words is "three hundred four million, four hundred thousand, two hundred twenty-two".