1366291968 has 80 divisors (see below), whose sum is σ = 3651046080. Its totient is φ = 454035456.

The previous prime is 1366291937. The next prime is 1366292003. The reversal of 1366291968 is 8691926631.

It is a self number, because there is not a number n which added to its sum of digits gives 1366291968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580971 + ... + 583317.

It is an arithmetic number, because the mean of its divisors is an integer number (45638076).

Almost surely, 2^1366291968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366291968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1825523040).

1366291968 is an abundant number, since it is smaller than the sum of its proper divisors (2284754112).

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

1366291968 is an equidigital number, since it uses as much as digits as its factorization.

1366291968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747 (or 2731 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 1366291968 is about 36963.3868578084. The cubic root of 1366291968 is about 1109.6376189032.

The spelling of 1366291968 in words is "one billion, three hundred sixty-six million, two hundred ninety-one thousand, nine hundred sixty-eight".