319816 has 16 divisors (see below), whose sum is σ = 685440. Its totient is φ = 137040.

The previous prime is 319811. The next prime is 319817. The reversal of 319816 is 618913.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (42840).

2³¹⁹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

319816 is an abundant number, since it is smaller than the sum of its proper divisors (365624).

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

319816 is a wasteful number, since it uses less digits than its factorization.

319816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724 (or 5720 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 319816 is about 565.5227670041. The cubic root of 319816 is about 68.3859255380.

The spelling of 319816 in words is "three hundred nineteen thousand, eight hundred sixteen".