6389404416 has 180 divisors, whose sum is σ = 19881881712. Its totient is φ = 2037049344.

The previous prime is 6389404391. The next prime is 6389404421. The reversal of 6389404416 is 6144049836.

6389404416 is a `hidden beast` number, since 638 + 9 + 4 + 0 + 4 + 4 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 470230 + ... + 483626.

Almost surely, 2^6389404416 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 6389404416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9940940856).

6389404416 is an abundant number, since it is smaller than the sum of its proper divisors (13492477296).

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

6389404416 is a wasteful number, since it uses less digits than its factorization.

6389404416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13448 (or 13425 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 6389404416 is about 79933.7501684989. The cubic root of 6389404416 is about 1855.6103769929.

The spelling of 6389404416 in words is "six billion, three hundred eighty-nine million, four hundred four thousand, four hundred sixteen".