438289768 has 16 divisors (see below), whose sum is σ = 939192480. Its totient is φ = 187838448.

The previous prime is 438289751. The next prime is 438289769. The reversal of 438289768 is 867982834.

It is not an unprimeable number, because it can be changed into a prime (438289769) 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, 3913246 + ... + 3913357.

It is an arithmetic number, because the mean of its divisors is an integer number (58699530).

Almost surely, 2^438289768 is an apocalyptic number.

It is an amenable number.

438289768 is an abundant number, since it is smaller than the sum of its proper divisors (500902712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438289768 is a wasteful number, since it uses less digits than its factorization.

438289768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7826616 (or 7826612 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The square root of 438289768 is about 20935.3712171530. The cubic root of 438289768 is about 759.6037685270.

The spelling of 438289768 in words is "four hundred thirty-eight million, two hundred eighty-nine thousand, seven hundred sixty-eight".