319940 has 24 divisors (see below), whose sum is σ = 712152. Its totient is φ = 120320.

The previous prime is 319937. The next prime is 319967. The reversal of 319940 is 49913.

319940 = T₆₁ + T₆₂ + ... + T₁₂₈.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 81796 + 238144 = 286^2 + 488^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 319940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (29673).

2³¹⁹⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

319940 is an abundant number, since it is smaller than the sum of its proper divisors (392212).

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

319940 is a wasteful number, since it uses less digits than its factorization.

319940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 319940 is about 565.6323894545. The cubic root of 319940 is about 68.3947626600.

The spelling of 319940 in words is "three hundred nineteen thousand, nine hundred forty".