396444318 has 16 divisors (see below), whose sum is σ = 839529360. Its totient is φ = 124374656.

The previous prime is 396444317. The next prime is 396444361. The reversal of 396444318 is 813444693.

It is a self number, because there is not a number n which added to its sum of digits gives 396444318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396444317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943253 + ... + 1943456.

It is an arithmetic number, because the mean of its divisors is an integer number (52470585).

Almost surely, 2^396444318 is an apocalyptic number.

396444318 is an abundant number, since it is smaller than the sum of its proper divisors (443085042).

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

396444318 is a wasteful number, since it uses less digits than its factorization.

396444318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886731.

The product of its digits is 248832, while the sum is 42.

The square root of 396444318 is about 19910.9095221690. The cubic root of 396444318 is about 734.6165911835.

The spelling of 396444318 in words is "three hundred ninety-six million, four hundred forty-four thousand, three hundred eighteen".