220344456 has 16 divisors (see below), whose sum is σ = 550861200. Its totient is φ = 73448144.

The previous prime is 220344451. The next prime is 220344457. The reversal of 220344456 is 654443022.

It is not an unprimeable number, because it can be changed into a prime (220344451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4590486 + ... + 4590533.

It is an arithmetic number, because the mean of its divisors is an integer number (34428825).

Almost surely, 2^220344456 is an apocalyptic number.

It is an amenable number.

220344456 is an abundant number, since it is smaller than the sum of its proper divisors (330516744).

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

220344456 is a wasteful number, since it uses less digits than its factorization.

220344456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9181028 (or 9181024 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 220344456 is about 14844.0040420366. The cubic root of 220344456 is about 603.9959723720.

Adding to 220344456 its reverse (654443022), we get a palindrome (874787478).

The spelling of 220344456 in words is "two hundred twenty million, three hundred forty-four thousand, four hundred fifty-six".