396664000 has 112 divisors (see below), whose sum is σ = 991392480. Its totient is φ = 157209600.

The previous prime is 396663997. The next prime is 396664033. The reversal of 396664000 is 466693.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431862 + ... + 1432138.

Almost surely, 2^396664000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396664000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495696240).

396664000 is an abundant number, since it is smaller than the sum of its proper divisors (594728480).

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

396664000 is a wasteful number, since it uses less digits than its factorization.

396664000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 396664000 is about 19916.4253820810. The cubic root of 396664000 is about 734.7522573497.

The spelling of 396664000 in words is "three hundred ninety-six million, six hundred sixty-four thousand".