1366681448 has 32 divisors (see below), whose sum is σ = 2818609920. Its totient is φ = 621214000.

The previous prime is 1366681441. The next prime is 1366681451. The reversal of 1366681448 is 8441866631.

It is not an unprimeable number, because it can be changed into a prime (1366681441) by changing a digit.

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, 53528 + ... + 74823.

It is an arithmetic number, because the mean of its divisors is an integer number (88081560).

Almost surely, 2^1366681448 is an apocalyptic number.

It is an amenable number.

1366681448 is an abundant number, since it is smaller than the sum of its proper divisors (1451928472).

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

1366681448 is a wasteful number, since it uses less digits than its factorization.

1366681448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128390 (or 128364 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 1366681448 is about 36968.6549390156. The cubic root of 1366681448 is about 1109.7430479549.

The spelling of 1366681448 in words is "one billion, three hundred sixty-six million, six hundred eighty-one thousand, four hundred forty-eight".