438935369 has 2 divisors, whose sum is σ = 438935370. Its totient is φ = 438935368.

The previous prime is 438935327. The next prime is 438935377. The reversal of 438935369 is 963539834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265038400 + 173896969 = 16280^2 + 13187^2 .

It is a cyclic number.

It is not a de Polignac number, because 438935369 - 2⁸ = 438935113 is a prime.

It is a super-2 number, since 2×438935369² = 385328516318332322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (438935309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219467684 + 219467685.

It is an arithmetic number, because the mean of its divisors is an integer number (219467685).

Almost surely, 2^438935369 is an apocalyptic number.

It is an amenable number.

438935369 is a deficient number, since it is larger than the sum of its proper divisors (1).

438935369 is an equidigital number, since it uses as much as digits as its factorization.

438935369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 50.

The square root of 438935369 is about 20950.7844483208. The cubic root of 438935369 is about 759.9765511002.

The spelling of 438935369 in words is "four hundred thirty-eight million, nine hundred thirty-five thousand, three hundred sixty-nine".