1329908904 has 24 divisors (see below), whose sum is σ = 3601836810. Its totient is φ = 443302944.

The previous prime is 1329908873. The next prime is 1329908927. The reversal of 1329908904 is 4098099231.

It can be written as a sum of positive squares in only one way, i.e., 1208952900 + 120956004 = 34770^2 + 10998^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1329908904.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9235407 + ... + 9235550.

Almost surely, 2^1329908904 is an apocalyptic number.

It is an amenable number.

1329908904 is an abundant number, since it is smaller than the sum of its proper divisors (2271927906).

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

1329908904 is a wasteful number, since it uses less digits than its factorization.

1329908904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18470969 (or 18470962 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1329908904 is about 36467.9160907228. The cubic root of 1329908904 is about 1099.6993404187.

The spelling of 1329908904 in words is "one billion, three hundred twenty-nine million, nine hundred eight thousand, nine hundred four".