319478334 has 48 divisors (see below), whose sum is σ = 745198848. Its totient is φ = 91043568.

The previous prime is 319478323. The next prime is 319478491. The reversal of 319478334 is 433874913.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134949 + ... + 137295.

It is an arithmetic number, because the mean of its divisors is an integer number (15524976).

Almost surely, 2^319478334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319478334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372599424).

319478334 is an abundant number, since it is smaller than the sum of its proper divisors (425720514).

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

319478334 is a wasteful number, since it uses less digits than its factorization.

319478334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2822 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 319478334 is about 17873.9568646677. The cubic root of 319478334 is about 683.6184947181.

The spelling of 319478334 in words is "three hundred nineteen million, four hundred seventy-eight thousand, three hundred thirty-four".