319990 has 16 divisors (see below), whose sum is σ = 628560. Its totient is φ = 116320.

The previous prime is 319981. The next prime is 319993. The reversal of 319990 is 99913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345 + ... + 1564.

It is an arithmetic number, because the mean of its divisors is an integer number (39285).

2³¹⁹⁹⁹⁰ is an apocalyptic number.

319990 is a deficient number, since it is larger than the sum of its proper divisors (308570).

319990 is a wasteful number, since it uses less digits than its factorization.

319990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927.

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 319990 is about 565.6765860454. The cubic root of 319990 is about 68.3983253697.

The spelling of 319990 in words is "three hundred nineteen thousand, nine hundred ninety".