2204431993 has 2 divisors, whose sum is σ = 2204431994. Its totient is φ = 2204431992.

The previous prime is 2204431967. The next prime is 2204432029. The reversal of 2204431993 is 3991344022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2020232809 + 184199184 = 44947^2 + 13572^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204431993 - 2¹³ = 2204423801 is a prime.

It is not a weakly prime, because it can be changed into another prime (2204431903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102215996 + 1102215997.

It is an arithmetic number, because the mean of its divisors is an integer number (1102215997).

Almost surely, 2^2204431993 is an apocalyptic number.

It is an amenable number.

2204431993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204431993 is an equidigital number, since it uses as much as digits as its factorization.

2204431993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 2204431993 is about 46951.3790319305. The cubic root of 2204431993 is about 1301.4642265127.

The spelling of 2204431993 in words is "two billion, two hundred four million, four hundred thirty-one thousand, nine hundred ninety-three".