438790039 has 16 divisors (see below), whose sum is σ = 460533600. Its totient is φ = 417539584.

The previous prime is 438790031. The next prime is 438790049. The reversal of 438790039 is 930097834.

It is a cyclic number.

It is not a de Polignac number, because 438790039 - 2³ = 438790031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 438789977 and 438790004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438790031) 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, 710859 + ... + 711475.

It is an arithmetic number, because the mean of its divisors is an integer number (28783350).

Almost surely, 2^438790039 is an apocalyptic number.

438790039 is a deficient number, since it is larger than the sum of its proper divisors (21743561).

438790039 is a wasteful number, since it uses less digits than its factorization.

438790039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 438790039 is about 20947.3157946311. The cubic root of 438790039 is about 759.8926666289.

The spelling of 438790039 in words is "four hundred thirty-eight million, seven hundred ninety thousand, thirty-nine".