1328664404 has 12 divisors (see below), whose sum is σ = 2359867104. Its totient is φ = 654416664.

The previous prime is 1328664401. The next prime is 1328664431. The reversal of 1328664404 is 4044668231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328664401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2478584 + ... + 2479119.

It is an arithmetic number, because the mean of its divisors is an integer number (196655592).

Almost surely, 2^1328664404 is an apocalyptic number.

It is an amenable number.

1328664404 is a deficient number, since it is larger than the sum of its proper divisors (1031202700).

1328664404 is a wasteful number, since it uses less digits than its factorization.

1328664404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957774 (or 4957772 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 1328664404 is about 36450.8491533462. The cubic root of 1328664404 is about 1099.3562084087.

The spelling of 1328664404 in words is "one billion, three hundred twenty-eight million, six hundred sixty-four thousand, four hundred four".