394660874 has 8 divisors (see below), whose sum is σ = 592638240. Its totient is φ = 197114796.

The previous prime is 394660873. The next prime is 394660891. The reversal of 394660874 is 478066493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (394660873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105524 + ... + 109199.

It is an arithmetic number, because the mean of its divisors is an integer number (74079780).

Almost surely, 2^394660874 is an apocalyptic number.

394660874 is a deficient number, since it is larger than the sum of its proper divisors (197977366).

394660874 is a wasteful number, since it uses less digits than its factorization.

394660874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215644.

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 394660874 is about 19866.0734419261. The cubic root of 394660874 is about 733.5133533713.

The spelling of 394660874 in words is "three hundred ninety-four million, six hundred sixty thousand, eight hundred seventy-four".