319442 has 4 divisors (see below), whose sum is σ = 479166. Its totient is φ = 159720.

The previous prime is 319441. The next prime is 319453. The reversal of 319442 is 244913.

319442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244913 = 53 ⋅4621.

It can be written as a sum of positive squares in only one way, i.e., 279841 + 39601 = 529^2 + 199^2 .

It is not an unprimeable number, because it can be changed into a prime (319441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79859 + ... + 79862.

2³¹⁹⁴⁴² is an apocalyptic number.

319442 is a deficient number, since it is larger than the sum of its proper divisors (159724).

319442 is a wasteful number, since it uses less digits than its factorization.

319442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159723.

The product of its digits is 864, while the sum is 23.

The square root of 319442 is about 565.1920027743. The cubic root of 319442 is about 68.3592577952.

Subtracting from 319442 its reverse (244913), we obtain a square (74529 = 273²).

The spelling of 319442 in words is "three hundred nineteen thousand, four hundred forty-two".