1366845344 has 12 divisors (see below), whose sum is σ = 2690976834. Its totient is φ = 683422656.

The previous prime is 1366845341. The next prime is 1366845367. The reversal of 1366845344 is 4435486631.

It can be written as a sum of positive squares in only one way, i.e., 1027843600 + 339001744 = 32060^2 + 18412^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1366845295 and 1366845304.

It is not an unprimeable number, because it can be changed into a prime (1366845341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21356927 + ... + 21356990.

Almost surely, 2^1366845344 is an apocalyptic number.

It is an amenable number.

1366845344 is a deficient number, since it is larger than the sum of its proper divisors (1324131490).

1366845344 is an equidigital number, since it uses as much as digits as its factorization.

1366845344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42713927 (or 42713919 counting only the distinct ones).

The product of its digits is 829440, while the sum is 44.

The square root of 1366845344 is about 36970.8715612710. The cubic root of 1366845344 is about 1109.7874072743.

The spelling of 1366845344 in words is "one billion, three hundred sixty-six million, eight hundred forty-five thousand, three hundred forty-four".