396328487520 has 1536 divisors, whose sum is σ = 1631895552000. Its totient is φ = 80472268800.

The previous prime is 396328487509. The next prime is 396328487641. The reversal of 396328487520 is 25784823693.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 5915350527 + ... + 5915350593.

It is an arithmetic number, because the mean of its divisors is an integer number (1062432000).

Almost surely, 2^396328487520 is an apocalyptic number.

396328487520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396328487520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815947776000).

396328487520 is an abundant number, since it is smaller than the sum of its proper divisors (1235567064480).

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

396328487520 is a wasteful number, since it uses less digits than its factorization.

396328487520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 396328487520 in words is "three hundred ninety-six billion, three hundred twenty-eight million, four hundred eighty-seven thousand, five hundred twenty".