1320768682 has 8 divisors (see below), whose sum is σ = 1981424196. Its totient is φ = 660293952.

The previous prime is 1320768677. The next prime is 1320768697. The reversal of 1320768682 is 2868670231.

It can be written as a sum of positive squares in 2 ways, for example, as 1096338321 + 224430361 = 33111^2 + 14981^2 .

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

It is a super-2 number, since 2×1320768682² = 3488859822704034248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25153 + ... + 57220.

Almost surely, 2^1320768682 is an apocalyptic number.

1320768682 is a deficient number, since it is larger than the sum of its proper divisors (660655514).

1320768682 is an equidigital number, since it uses as much as digits as its factorization.

1320768682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90392.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 1320768682 is about 36342.3813474021. The cubic root of 1320768682 is about 1097.1742021000.

The spelling of 1320768682 in words is "one billion, three hundred twenty million, seven hundred sixty-eight thousand, six hundred eighty-two".