394296666 has 8 divisors (see below), whose sum is σ = 788593344. Its totient is φ = 131432220.

The previous prime is 394296647. The next prime is 394296667. The reversal of 394296666 is 666692493.

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

394296666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (394296667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32858050 + ... + 32858061.

It is an arithmetic number, because the mean of its divisors is an integer number (98574168).

Almost surely, 2^394296666 is an apocalyptic number.

394296666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

394296666 is a wasteful number, since it uses less digits than its factorization.

394296666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65716116.

The product of its digits is 2519424, while the sum is 51.

The square root of 394296666 is about 19856.9047436905. The cubic root of 394296666 is about 733.2876459599.

The spelling of 394296666 in words is "three hundred ninety-four million, two hundred ninety-six thousand, six hundred sixty-six".