438137163 has 24 divisors (see below), whose sum is σ = 646485840. Its totient is φ = 285871680.

The previous prime is 438137159. The next prime is 438137171. The reversal of 438137163 is 361731834.

It is not a de Polignac number, because 438137163 - 2² = 438137159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (438137113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78733 + ... + 84113.

It is an arithmetic number, because the mean of its divisors is an integer number (26936910).

Almost surely, 2^438137163 is an apocalyptic number.

438137163 is a deficient number, since it is larger than the sum of its proper divisors (208348677).

438137163 is a wasteful number, since it uses less digits than its factorization.

438137163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5579 (or 5576 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 438137163 is about 20931.7262307723. The cubic root of 438137163 is about 759.5155979468.

Adding to 438137163 its reverse (361731834), we get a palindrome (799868997).

The spelling of 438137163 in words is "four hundred thirty-eight million, one hundred thirty-seven thousand, one hundred sixty-three".