394319718 has 64 divisors (see below), whose sum is σ = 965690880. Its totient is φ = 118498464.

The previous prime is 394319671. The next prime is 394319747. The reversal of 394319718 is 817913493.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23655 + ... + 36717.

It is an arithmetic number, because the mean of its divisors is an integer number (15088920).

Almost surely, 2^394319718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394319718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482845440).

394319718 is an abundant number, since it is smaller than the sum of its proper divisors (571371162).

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

394319718 is a wasteful number, since it uses less digits than its factorization.

394319718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13130 (or 13124 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 394319718 is about 19857.4851882105. The cubic root of 394319718 is about 733.3019358917.

The spelling of 394319718 in words is "three hundred ninety-four million, three hundred nineteen thousand, seven hundred eighteen".