305222304 has 24 divisors (see below), whose sum is σ = 801208800. Its totient is φ = 101740736.

The previous prime is 305222297. The next prime is 305222317. The reversal of 305222304 is 403222503.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589604 + ... + 1589795.

It is an arithmetic number, because the mean of its divisors is an integer number (33383700).

Almost surely, 2^305222304 is an apocalyptic number.

It is an amenable number.

305222304 is an abundant number, since it is smaller than the sum of its proper divisors (495986496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305222304 is a wasteful number, since it uses less digits than its factorization.

305222304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179412 (or 3179404 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 305222304 is about 17470.6125822766. The cubic root of 305222304 is about 673.2950508139.

Adding to 305222304 its reverse (403222503), we get a palindrome (708444807).

The spelling of 305222304 in words is "three hundred five million, two hundred twenty-two thousand, three hundred four".