220204393 has 2 divisors, whose sum is σ = 220204394. Its totient is φ = 220204392.

The previous prime is 220204331. The next prime is 220204403. The reversal of 220204393 is 393402022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215590489 + 4613904 = 14683^2 + 2148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220204393 is a prime.

It is a super-3 number, since 3×220204393³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (220204493) 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, 110102196 + 110102197.

It is an arithmetic number, because the mean of its divisors is an integer number (110102197).

Almost surely, 2^220204393 is an apocalyptic number.

It is an amenable number.

220204393 is a deficient number, since it is larger than the sum of its proper divisors (1).

220204393 is an equidigital number, since it uses as much as digits as its factorization.

220204393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 220204393 is about 14839.2854612343. The cubic root of 220204393 is about 603.8679676097.

The spelling of 220204393 in words is "two hundred twenty million, two hundred four thousand, three hundred ninety-three".