393893466 has 16 divisors (see below), whose sum is σ = 793005888. Its totient is φ = 130428000.

The previous prime is 393893443. The next prime is 393893497. The reversal of 393893466 is 664398393.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216475 + ... + 218286.

It is an arithmetic number, because the mean of its divisors is an integer number (49562868).

Almost surely, 2^393893466 is an apocalyptic number.

393893466 is an abundant number, since it is smaller than the sum of its proper divisors (399112422).

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

393893466 is a wasteful number, since it uses less digits than its factorization.

393893466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434917.

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

The square root of 393893466 is about 19846.7495071611. The cubic root of 393893466 is about 733.0376122156.

The spelling of 393893466 in words is "three hundred ninety-three million, eight hundred ninety-three thousand, four hundred sixty-six".