1328004408 has 16 divisors (see below), whose sum is σ = 3320011080. Its totient is φ = 442668128.

The previous prime is 1328004397. The next prime is 1328004409. The reversal of 1328004408 is 8044008231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328004409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27666735 + ... + 27666782.

Almost surely, 2^1328004408 is an apocalyptic number.

It is an amenable number.

1328004408 is an abundant number, since it is smaller than the sum of its proper divisors (1992006672).

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

1328004408 is a wasteful number, since it uses less digits than its factorization.

1328004408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55333526 (or 55333522 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 1328004408 is about 36441.7947966343. The cubic root of 1328004408 is about 1099.1741481708.

The spelling of 1328004408 in words is "one billion, three hundred twenty-eight million, four thousand, four hundred eight".