1329008004 has 36 divisors (see below), whose sum is σ = 3361927296. Its totient is φ = 442674288.

The previous prime is 1329008003. The next prime is 1329008039. The reversal of 1329008004 is 4008009231.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1329008003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38257 + ... + 64199.

Almost surely, 2^1329008004 is an apocalyptic number.

It is an amenable number.

1329008004 is an abundant number, since it is smaller than the sum of its proper divisors (2032919292).

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

1329008004 is a wasteful number, since it uses less digits than its factorization.

1329008004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27376 (or 27371 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1329008004 is about 36455.5620447690. The cubic root of 1329008004 is about 1099.4509667829.

The spelling of 1329008004 in words is "one billion, three hundred twenty-nine million, eight thousand, four".