396785830860 has 144 divisors (see below), whose sum is σ = 1233411169536. Its totient is φ = 103218039936.

The previous prime is 396785830817. The next prime is 396785830867. The reversal of 396785830860 is 68038587693.

It is not an unprimeable number, because it can be changed into a prime (396785830867) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1082467 + ... + 1401893.

It is an arithmetic number, because the mean of its divisors is an integer number (8565355344).

Almost surely, 2^396785830860 is an apocalyptic number.

396785830860 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 396785830860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616705584768).

396785830860 is an abundant number, since it is smaller than the sum of its proper divisors (836625338676).

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

396785830860 is a wasteful number, since it uses less digits than its factorization.

396785830860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319612 (or 319607 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 396785830860 in words is "three hundred ninety-six billion, seven hundred eighty-five million, eight hundred thirty thousand, eight hundred sixty".