1304328064 has 64 divisors (see below), whose sum is σ = 2805420240. Its totient is φ = 600477696.

The previous prime is 1304328059. The next prime is 1304328083. The reversal of 1304328064 is 4608234031.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909492 + ... + 910924.

Almost surely, 2^1304328064 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 1304328064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1402710120).

1304328064 is an abundant number, since it is smaller than the sum of its proper divisors (1501092176).

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

1304328064 is a wasteful number, since it uses less digits than its factorization.

1304328064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007 (or 1995 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 1304328064 is about 36115.4823309893. The cubic root of 1304328064 is about 1092.6027255839.

The spelling of 1304328064 in words is "one billion, three hundred four million, three hundred twenty-eight thousand, sixty-four".