319312228 has 6 divisors (see below), whose sum is σ = 558796406. Its totient is φ = 159656112.

The previous prime is 319312199. The next prime is 319312229. The reversal of 319312228 is 822213913.

319312228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 193154404 + 126157824 = 13898^2 + 11232^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 319312228.

It is not an unprimeable number, because it can be changed into a prime (319312229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39914025 + ... + 39914032.

Almost surely, 2^319312228 is an apocalyptic number.

It is an amenable number.

319312228 is a deficient number, since it is larger than the sum of its proper divisors (239484178).

319312228 is a wasteful number, since it uses less digits than its factorization.

319312228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79828061 (or 79828059 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 319312228 is about 17869.3096676956. The cubic root of 319312228 is about 683.4999965216.

The spelling of 319312228 in words is "three hundred nineteen million, three hundred twelve thousand, two hundred twenty-eight".