1366255444 has 12 divisors (see below), whose sum is σ = 2423700244. Its totient is φ = 673769664.

The previous prime is 1366255427. The next prime is 1366255463. The reversal of 1366255444 is 4445526631.

It can be written as a sum of positive squares in 2 ways, for example, as 375894544 + 990360900 = 19388^2 + 31470^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1366255397 and 1366255406.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2339187 + ... + 2339770.

Almost surely, 2^1366255444 is an apocalyptic number.

It is an amenable number.

1366255444 is a deficient number, since it is larger than the sum of its proper divisors (1057444800).

1366255444 is a wasteful number, since it uses less digits than its factorization.

1366255444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679034 (or 4679032 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The square root of 1366255444 is about 36962.8927980482. The cubic root of 1366255444 is about 1109.6277311275.

The spelling of 1366255444 in words is "one billion, three hundred sixty-six million, two hundred fifty-five thousand, four hundred forty-four".