319680746 has 64 divisors (see below), whose sum is σ = 632033280. Its totient is φ = 117620160.

The previous prime is 319680737. The next prime is 319680763. The reversal of 319680746 is 647086913.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 319680697 and 319680706.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209141 + ... + 210663.

It is an arithmetic number, because the mean of its divisors is an integer number (9875520).

Almost surely, 2^319680746 is an apocalyptic number.

319680746 is a deficient number, since it is larger than the sum of its proper divisors (312352534).

319680746 is a wasteful number, since it uses less digits than its factorization.

319680746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 319680746 is about 17879.6181726568. The cubic root of 319680746 is about 683.7628377084.

The spelling of 319680746 in words is "three hundred nineteen million, six hundred eighty thousand, seven hundred forty-six".