1684196064 has 144 divisors (see below), whose sum is σ = 5052378240. Its totient is φ = 551733120.

The previous prime is 1684196057. The next prime is 1684196089. The reversal of 1684196064 is 4606914861.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 456949 + ... + 460619.

It is an arithmetic number, because the mean of its divisors is an integer number (35085960).

Almost surely, 2^1684196064 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 1684196064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2526189120).

1684196064 is an abundant number, since it is smaller than the sum of its proper divisors (3368182176).

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

1684196064 is an equidigital number, since it uses as much as digits as its factorization.

1684196064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755 (or 3735 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1684196064 is about 41038.9578815057. The cubic root of 1684196064 is about 1189.7732929708.

The spelling of 1684196064 in words is "one billion, six hundred eighty-four million, one hundred ninety-six thousand, sixty-four".