1308819968 has 40 divisors (see below), whose sum is σ = 2728807488. Its totient is φ = 625951744.

The previous prime is 1308819947. The next prime is 1308819971. The reversal of 1308819968 is 8699188031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43796 + ... + 67347.

Almost surely, 2^1308819968 is an apocalyptic number.

It is an amenable number.

1308819968 is an abundant number, since it is smaller than the sum of its proper divisors (1419987520).

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

1308819968 is an equidigital number, since it uses as much as digits as its factorization.

1308819968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111184 (or 111168 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 53.

The square root of 1308819968 is about 36177.6169474995. The cubic root of 1308819968 is about 1093.8555400829.

The spelling of 1308819968 in words is "one billion, three hundred eight million, eight hundred nineteen thousand, nine hundred sixty-eight".