394319320 has 16 divisors (see below), whose sum is σ = 887218560. Its totient is φ = 157727712.

The previous prime is 394319297. The next prime is 394319339. The reversal of 394319320 is 23913493.

It is a super-2 number, since 2×394319320² = 310975452250524800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4928952 + ... + 4929031.

It is an arithmetic number, because the mean of its divisors is an integer number (55451160).

Almost surely, 2^394319320 is an apocalyptic number.

It is an amenable number.

394319320 is an abundant number, since it is smaller than the sum of its proper divisors (492899240).

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

394319320 is a wasteful number, since it uses less digits than its factorization.

394319320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9857994 (or 9857990 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 394319320 is about 19857.4751667980. The cubic root of 394319320 is about 733.3016891763.

The spelling of 394319320 in words is "three hundred ninety-four million, three hundred nineteen thousand, three hundred twenty".