1308839968 has 12 divisors (see below), whose sum is σ = 2576778750. Its totient is φ = 654419968.

The previous prime is 1308839953. The next prime is 1308839993. The reversal of 1308839968 is 8699388031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1192459024 + 116380944 = 34532^2 + 10788^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20450593 + ... + 20450656.

Almost surely, 2^1308839968 is an apocalyptic number.

It is an amenable number.

1308839968 is a deficient number, since it is larger than the sum of its proper divisors (1267938782).

1308839968 is an equidigital number, since it uses as much as digits as its factorization.

1308839968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40901259 (or 40901251 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The square root of 1308839968 is about 36177.8933604487. The cubic root of 1308839968 is about 1093.8611117683.

The spelling of 1308839968 in words is "one billion, three hundred eight million, eight hundred thirty-nine thousand, nine hundred sixty-eight".