438819872 has 12 divisors (see below), whose sum is σ = 863926686. Its totient is φ = 219409920.

The previous prime is 438819869. The next prime is 438819883. The reversal of 438819872 is 278918834.

It can be written as a sum of positive squares in only one way, i.e., 426174736 + 12645136 = 20644^2 + 3556^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 438819872.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6856529 + ... + 6856592.

Almost surely, 2^438819872 is an apocalyptic number.

It is an amenable number.

438819872 is a deficient number, since it is larger than the sum of its proper divisors (425106814).

438819872 is a wasteful number, since it uses less digits than its factorization.

438819872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13713131 (or 13713123 counting only the distinct ones).

The product of its digits is 774144, while the sum is 50.

The square root of 438819872 is about 20948.0278785379. The cubic root of 438819872 is about 759.9098877462.

The spelling of 438819872 in words is "four hundred thirty-eight million, eight hundred nineteen thousand, eight hundred seventy-two".