319389144 has 32 divisors (see below), whose sum is σ = 799800000. Its totient is φ = 106286112.

The previous prime is 319389137. The next prime is 319389157. The reversal of 319389144 is 441983913.

It is a junction number, because it is equal to n+sod(n) for n = 319389096 and 319389105.

It is a congruent number.

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, 4107 + ... + 25605.

It is an arithmetic number, because the mean of its divisors is an integer number (24993750).

Almost surely, 2^319389144 is an apocalyptic number.

It is an amenable number.

319389144 is an abundant number, since it is smaller than the sum of its proper divisors (480410856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

319389144 is a wasteful number, since it uses less digits than its factorization.

319389144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22127 (or 22123 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 319389144 is about 17871.4617197363. The cubic root of 319389144 is about 683.5548726590.

The spelling of 319389144 in words is "three hundred nineteen million, three hundred eighty-nine thousand, one hundred forty-four".