1328241904 has 160 divisors (see below), whose sum is σ = 3077803008. Its totient is φ = 549120000.

The previous prime is 1328241793. The next prime is 1328241913. The reversal of 1328241904 is 4091428231.

It is a self number, because there is not a number n which added to its sum of digits gives 1328241904.

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 31 ways as a sum of consecutive naturals, for example, 8796229 + ... + 8796379.

Almost surely, 2^1328241904 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 1328241904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1538901504).

1328241904 is an abundant number, since it is smaller than the sum of its proper divisors (1749561104).

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

1328241904 is a wasteful number, since it uses less digits than its factorization.

1328241904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1328241904 is about 36445.0532171377. The cubic root of 1328241904 is about 1099.2396685114.

The spelling of 1328241904 in words is "one billion, three hundred twenty-eight million, two hundred forty-one thousand, nine hundred four".