319449393 has 8 divisors (see below), whose sum is σ = 473258400. Its totient is φ = 212966244.

The previous prime is 319449373. The next prime is 319449407. The reversal of 319449393 is 393944913.

It is a de Polignac number, because none of the positive numbers 2^k-319449393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (319449343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5915703 + ... + 5915756.

It is an arithmetic number, because the mean of its divisors is an integer number (59157300).

Almost surely, 2^319449393 is an apocalyptic number.

It is an amenable number.

319449393 is a deficient number, since it is larger than the sum of its proper divisors (153809007).

319449393 is a wasteful number, since it uses less digits than its factorization.

319449393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11831468 (or 11831462 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 319449393 is about 17873.1472606254. The cubic root of 319449393 is about 683.5978514818.

The spelling of 319449393 in words is "three hundred nineteen million, four hundred forty-nine thousand, three hundred ninety-three".