319669668 has 72 divisors (see below), whose sum is σ = 842849280. Its totient is φ = 102029760.

The previous prime is 319669631. The next prime is 319669673. The reversal of 319669668 is 866966913.

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 in 23 ways as a sum of consecutive naturals, for example, 131383 + ... + 133793.

It is an arithmetic number, because the mean of its divisors is an integer number (11706240).

Almost surely, 2^319669668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319669668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421424640).

319669668 is an abundant number, since it is smaller than the sum of its proper divisors (523179612).

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

319669668 is a wasteful number, since it uses less digits than its factorization.

319669668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577 (or 2572 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 319669668 is about 17879.3083758852. The cubic root of 319669668 is about 683.7549393991.

The spelling of 319669668 in words is "three hundred nineteen million, six hundred sixty-nine thousand, six hundred sixty-eight".