394345996 has 24 divisors (see below), whose sum is σ = 753345936. Its totient is φ = 179128320.

The previous prime is 394345993. The next prime is 394345997. The reversal of 394345996 is 699543493.

It is a super-2 number, since 2×394345996² = 311017529122464032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394345993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124140 + ... + 127276.

It is an arithmetic number, because the mean of its divisors is an integer number (31389414).

Almost surely, 2^394345996 is an apocalyptic number.

It is an amenable number.

394345996 is a deficient number, since it is larger than the sum of its proper divisors (358999940).

394345996 is a wasteful number, since it uses less digits than its factorization.

394345996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009 (or 6007 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 52.

The square root of 394345996 is about 19858.1468420394. The cubic root of 394345996 is about 733.3182249413.

The spelling of 394345996 in words is "three hundred ninety-four million, three hundred forty-five thousand, nine hundred ninety-six".