319238648 has 24 divisors (see below), whose sum is σ = 635858400. Its totient is φ = 150228864.

The previous prime is 319238629. The next prime is 319238653. The reversal of 319238648 is 846832913.

It is a junction number, because it is equal to n+sod(n) for n = 319238599 and 319238608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66728 + ... + 71351.

It is an arithmetic number, because the mean of its divisors is an integer number (26494100).

Almost surely, 2^319238648 is an apocalyptic number.

It is an amenable number.

319238648 is a deficient number, since it is larger than the sum of its proper divisors (316619752).

319238648 is a wasteful number, since it uses less digits than its factorization.

319238648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138119 (or 138098 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 319238648 is about 17867.2507118471. The cubic root of 319238648 is about 683.4474922235.

The spelling of 319238648 in words is "three hundred nineteen million, two hundred thirty-eight thousand, six hundred forty-eight".