438484839 has 16 divisors (see below), whose sum is σ = 637593600. Its totient is φ = 266419296.

The previous prime is 438484819. The next prime is 438484841. The reversal of 438484839 is 938484834.

It is not a de Polignac number, because 438484839 - 2⁵ = 438484807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438484791 and 438484800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438484819) 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 in 15 ways as a sum of consecutive naturals, for example, 68079 + ... + 74240.

It is an arithmetic number, because the mean of its divisors is an integer number (39849600).

Almost surely, 2^438484839 is an apocalyptic number.

438484839 is a deficient number, since it is larger than the sum of its proper divisors (199108761).

438484839 is a wasteful number, since it uses less digits than its factorization.

438484839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142414.

The product of its digits is 2654208, while the sum is 51.

The square root of 438484839 is about 20940.0295845063. The cubic root of 438484839 is about 759.7164448885.

The spelling of 438484839 in words is "four hundred thirty-eight million, four hundred eighty-four thousand, eight hundred thirty-nine".