220464841 has 2 divisors, whose sum is σ = 220464842. Its totient is φ = 220464840.

The previous prime is 220464781. The next prime is 220464859. The reversal of 220464841 is 148464022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124992400 + 95472441 = 11180^2 + 9771^2 .

It is a cyclic number.

It is not a de Polignac number, because 220464841 - 2⁹ = 220464329 is a prime.

It is a super-2 number, since 2×220464841² = 97209492234310562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220464341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110232420 + 110232421.

It is an arithmetic number, because the mean of its divisors is an integer number (110232421).

Almost surely, 2^220464841 is an apocalyptic number.

It is an amenable number.

220464841 is a deficient number, since it is larger than the sum of its proper divisors (1).

220464841 is an equidigital number, since it uses as much as digits as its factorization.

220464841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 220464841 is about 14848.0584926111. The cubic root of 220464841 is about 604.1059499021.

The spelling of 220464841 in words is "two hundred twenty million, four hundred sixty-four thousand, eight hundred forty-one".