396860918 has 8 divisors (see below), whose sum is σ = 599234160. Its totient is φ = 197116200.

The previous prime is 396860909. The next prime is 396860941. The reversal of 396860918 is 819068693.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656753 + ... + 657356.

It is an arithmetic number, because the mean of its divisors is an integer number (74904270).

Almost surely, 2^396860918 is an apocalyptic number.

396860918 is a deficient number, since it is larger than the sum of its proper divisors (202373242).

396860918 is a wasteful number, since it uses less digits than its factorization.

396860918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314262.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 396860918 is about 19921.3683766954. The cubic root of 396860918 is about 734.8738228806.

The spelling of 396860918 in words is "three hundred ninety-six million, eight hundred sixty thousand, nine hundred eighteen".