1328820008 has 16 divisors (see below), whose sum is σ = 2494066560. Its totient is φ = 663735600.

The previous prime is 1328820001. The next prime is 1328820019. The reversal of 1328820008 is 8000288231.

It is a super-2 number, since 2×1328820008² = 3531525227322240128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1328820001) 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, 75878 + ... + 91733.

It is an arithmetic number, because the mean of its divisors is an integer number (155879160).

Almost surely, 2^1328820008 is an apocalyptic number.

It is an amenable number.

1328820008 is a deficient number, since it is larger than the sum of its proper divisors (1165246552).

1328820008 is a wasteful number, since it uses less digits than its factorization.

1328820008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168608 (or 168604 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1328820008 is about 36452.9835267293. The cubic root of 1328820008 is about 1099.3991230694.

The spelling of 1328820008 in words is "one billion, three hundred twenty-eight million, eight hundred twenty thousand, eight".