438930005 has 4 divisors (see below), whose sum is σ = 526716012. Its totient is φ = 351144000.

The previous prime is 438929989. The next prime is 438930049. The reversal of 438930005 is 500039834.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 324504196 + 114425809 = 18014^2 + 10697^2 .

It is not a de Polignac number, because 438930005 - 2⁴ = 438929989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43892996 + ... + 43893005.

It is an arithmetic number, because the mean of its divisors is an integer number (131679003).

Almost surely, 2^438930005 is an apocalyptic number.

It is an amenable number.

438930005 is a deficient number, since it is larger than the sum of its proper divisors (87786007).

438930005 is an equidigital number, since it uses as much as digits as its factorization.

438930005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87786006.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 438930005 is about 20950.6564336299. The cubic root of 438930005 is about 759.9734553287.

Adding to 438930005 its reverse (500039834), we get a palindrome (938969839).

The spelling of 438930005 in words is "four hundred thirty-eight million, nine hundred thirty thousand, five".