438234163 has 4 divisors (see below), whose sum is σ = 441136528. Its totient is φ = 435331800.

The previous prime is 438234161. The next prime is 438234193. The reversal of 438234163 is 361432834.

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

It is a cyclic number.

It is not a de Polignac number, because 438234163 - 2¹ = 438234161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438234161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450956 + ... + 1451257.

It is an arithmetic number, because the mean of its divisors is an integer number (110284132).

Almost surely, 2^438234163 is an apocalyptic number.

438234163 is a deficient number, since it is larger than the sum of its proper divisors (2902365).

438234163 is a wasteful number, since it uses less digits than its factorization.

438234163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902364.

The product of its digits is 41472, while the sum is 34.

The square root of 438234163 is about 20934.0431594090. The cubic root of 438234163 is about 759.5716440005.

Adding to 438234163 its reverse (361432834), we get a palindrome (799666997).

The spelling of 438234163 in words is "four hundred thirty-eight million, two hundred thirty-four thousand, one hundred sixty-three".