220304456 has 16 divisors (see below), whose sum is σ = 418300800. Its totient is φ = 108757584.

The previous prime is 220304417. The next prime is 220304473. The reversal of 220304456 is 654403022.

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, 173660 + ... + 174923.

It is an arithmetic number, because the mean of its divisors is an integer number (26143800).

Almost surely, 2^220304456 is an apocalyptic number.

It is an amenable number.

220304456 is a deficient number, since it is larger than the sum of its proper divisors (197996344).

220304456 is a wasteful number, since it uses less digits than its factorization.

220304456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348668 (or 348664 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 220304456 is about 14842.6566355218. The cubic root of 220304456 is about 603.9594215681.

Adding to 220304456 its reverse (654403022), we get a palindrome (874707478).

The spelling of 220304456 in words is "two hundred twenty million, three hundred four thousand, four hundred fifty-six".