396178016 has 72 divisors (see below), whose sum is σ = 868819392. Its totient is φ = 176774400.

The previous prime is 396177983. The next prime is 396178043. The reversal of 396178016 is 610871693.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399281 + ... + 400271.

It is an arithmetic number, because the mean of its divisors is an integer number (12066936).

Almost surely, 2^396178016 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 396178016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434409696).

396178016 is an abundant number, since it is smaller than the sum of its proper divisors (472641376).

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

396178016 is a wasteful number, since it uses less digits than its factorization.

396178016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 396178016 is about 19904.2210598657. The cubic root of 396178016 is about 734.4520672910.

The spelling of 396178016 in words is "three hundred ninety-six million, one hundred seventy-eight thousand, sixteen".