220454449 has 2 divisors, whose sum is σ = 220454450. Its totient is φ = 220454448.

The previous prime is 220454387. The next prime is 220454459. The reversal of 220454449 is 944454022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188870049 + 31584400 = 13743^2 + 5620^2 .

It is a cyclic number.

It is not a de Polignac number, because 220454449 - 2¹⁷ = 220323377 is a prime.

It is not a weakly prime, because it can be changed into another prime (220454459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110227224 + 110227225.

It is an arithmetic number, because the mean of its divisors is an integer number (110227225).

Almost surely, 2^220454449 is an apocalyptic number.

It is an amenable number.

220454449 is a deficient number, since it is larger than the sum of its proper divisors (1).

220454449 is an equidigital number, since it uses as much as digits as its factorization.

220454449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 220454449 is about 14847.7085437451. The cubic root of 220454449 is about 604.0964578856.

The spelling of 220454449 in words is "two hundred twenty million, four hundred fifty-four thousand, four hundred forty-nine".