438808219229 has 2 divisors, whose sum is σ = 438808219230. Its totient is φ = 438808219228.

The previous prime is 438808219169. The next prime is 438808219243. The reversal of 438808219229 is 922912808834.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254489980900 + 184318238329 = 504470^2 + 429323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438808219229 is a prime.

It is a super-2 number, since 2×438808219229² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438808219279) 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, 219404109614 + 219404109615.

It is an arithmetic number, because the mean of its divisors is an integer number (219404109615).

Almost surely, 2^438808219229 is an apocalyptic number.

It is an amenable number.

438808219229 is a deficient number, since it is larger than the sum of its proper divisors (1).

438808219229 is an equidigital number, since it uses as much as digits as its factorization.

438808219229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 438808219229 in words is "four hundred thirty-eight billion, eight hundred eight million, two hundred nineteen thousand, two hundred twenty-nine".