396312218 has 16 divisors (see below), whose sum is σ = 627794496. Its totient is φ = 187255200.

The previous prime is 396312199. The next prime is 396312223. The reversal of 396312218 is 812213693.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48083 + ... + 55718.

It is an arithmetic number, because the mean of its divisors is an integer number (39237156).

Almost surely, 2^396312218 is an apocalyptic number.

396312218 is a deficient number, since it is larger than the sum of its proper divisors (231482278).

396312218 is a wasteful number, since it uses less digits than its factorization.

396312218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103909.

The product of its digits is 15552, while the sum is 35.

The square root of 396312218 is about 19907.5919688947. The cubic root of 396312218 is about 734.5349877670.

The spelling of 396312218 in words is "three hundred ninety-six million, three hundred twelve thousand, two hundred eighteen".