1366076449 has 4 divisors (see below), whose sum is σ = 1366871940. Its totient is φ = 1365280960.

The previous prime is 1366076443. The next prime is 1366076527. The reversal of 1366076449 is 9446706631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9446706631 = 137 ⋅68954063.

It can be written as a sum of positive squares in 2 ways, for example, as 648211600 + 717864849 = 25460^2 + 26793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366076449 - 2⁷ = 1366076321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1366076399 and 1366076408.

It is not an unprimeable number, because it can be changed into a prime (1366076443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395164 + ... + 398605.

It is an arithmetic number, because the mean of its divisors is an integer number (341717985).

Almost surely, 2^1366076449 is an apocalyptic number.

It is an amenable number.

1366076449 is a deficient number, since it is larger than the sum of its proper divisors (795491).

1366076449 is an equidigital number, since it uses as much as digits as its factorization.

1366076449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795490.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 1366076449 is about 36960.4714390929. The cubic root of 1366076449 is about 1109.5792710607.

It can be divided in two parts, 13660 and 76449, that added together give a palindrome (90109).

The spelling of 1366076449 in words is "one billion, three hundred sixty-six million, seventy-six thousand, four hundred forty-nine".