438169039 has 16 divisors (see below), whose sum is σ = 555250176. Its totient is φ = 335829600.

The previous prime is 438169027. The next prime is 438169057. The reversal of 438169039 is 930961834.

It is a cyclic number.

It is not a de Polignac number, because 438169039 - 2¹⁹ = 437644751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 438168986 and 438169004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438169019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41947 + ... + 51340.

It is an arithmetic number, because the mean of its divisors is an integer number (34703136).

Almost surely, 2^438169039 is an apocalyptic number.

438169039 is a deficient number, since it is larger than the sum of its proper divisors (117081137).

438169039 is a wasteful number, since it uses less digits than its factorization.

438169039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93366.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 438169039 is about 20932.4876448071. The cubic root of 438169039 is about 759.5340166325.

The spelling of 438169039 in words is "four hundred thirty-eight million, one hundred sixty-nine thousand, thirty-nine".