319979842 has 16 divisors (see below), whose sum is σ = 590732352. Its totient is φ = 126585360.

The previous prime is 319979839. The next prime is 319979879. The reversal of 319979842 is 248979913.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 319979842.

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, 878884 + ... + 879247.

It is an arithmetic number, because the mean of its divisors is an integer number (36920772).

Almost surely, 2^319979842 is an apocalyptic number.

319979842 is a deficient number, since it is larger than the sum of its proper divisors (270752510).

319979842 is a wasteful number, since it uses less digits than its factorization.

319979842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758153.

The product of its digits is 979776, while the sum is 52.

The square root of 319979842 is about 17887.9803778962. The cubic root of 319979842 is about 683.9760159961.

The spelling of 319979842 in words is "three hundred nineteen million, nine hundred seventy-nine thousand, eight hundred forty-two".