1366799812 has 24 divisors (see below), whose sum is σ = 2827863360. Its totient is φ = 565572000.

The previous prime is 1366799807. The next prime is 1366799831. The reversal of 1366799812 is 2189976631.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1366799812.

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 7 ways as a sum of consecutive naturals, for example, 840814 + ... + 842437.

It is an arithmetic number, because the mean of its divisors is an integer number (117827640).

Almost surely, 2^1366799812 is an apocalyptic number.

It is an amenable number.

1366799812 is an abundant number, since it is smaller than the sum of its proper divisors (1461063548).

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

1366799812 is a wasteful number, since it uses less digits than its factorization.

1366799812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683291 (or 1683289 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 1366799812 is about 36970.2557740679. The cubic root of 1366799812 is about 1109.7750841534.

The spelling of 1366799812 in words is "one billion, three hundred sixty-six million, seven hundred ninety-nine thousand, eight hundred twelve".