394266568 has 16 divisors (see below), whose sum is σ = 778158000. Its totient is φ = 186757776.

The previous prime is 394266557. The next prime is 394266569. The reversal of 394266568 is 865662493.

It is a super-2 number, since 2×394266568² = 310892253284997248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394266569) 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, 1296778 + ... + 1297081.

It is an arithmetic number, because the mean of its divisors is an integer number (48634875).

Almost surely, 2^394266568 is an apocalyptic number.

394266568 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

394266568 is a deficient number, since it is larger than the sum of its proper divisors (383891432).

394266568 is a wasteful number, since it uses less digits than its factorization.

394266568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593884 (or 2593880 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The square root of 394266568 is about 19856.1468568300. The cubic root of 394266568 is about 733.2689873753.

The spelling of 394266568 in words is "three hundred ninety-four million, two hundred sixty-six thousand, five hundred sixty-eight".