1309668682 has 8 divisors (see below), whose sum is σ = 2245146336. Its totient is φ = 561286572.

The previous prime is 1309668671. The next prime is 1309668697. The reversal of 1309668682 is 2868669031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1309668682² = 3430464113223234248, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 46773868 + ... + 46773895.

It is an arithmetic number, because the mean of its divisors is an integer number (280643292).

Almost surely, 2^1309668682 is an apocalyptic number.

1309668682 is a deficient number, since it is larger than the sum of its proper divisors (935477654).

1309668682 is an equidigital number, since it uses as much as digits as its factorization.

1309668682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93547772.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 1309668682 is about 36189.3448683449. The cubic root of 1309668682 is about 1094.0919285693.

The spelling of 1309668682 in words is "one billion, three hundred nine million, six hundred sixty-eight thousand, six hundred eighty-two".