1366444452 has 12 divisors (see below), whose sum is σ = 3188370416. Its totient is φ = 455481480.

The previous prime is 1366444403. The next prime is 1366444483. The reversal of 1366444452 is 2544446631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1366444452.

It is an unprimeable number.

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, 56935174 + ... + 56935197.

Almost surely, 2^1366444452 is an apocalyptic number.

1366444452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1366444452 is an abundant number, since it is smaller than the sum of its proper divisors (1821925964).

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

1366444452 is a wasteful number, since it uses less digits than its factorization.

1366444452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113870378 (or 113870376 counting only the distinct ones).

The product of its digits is 276480, while the sum is 39.

The square root of 1366444452 is about 36965.4494359260. The cubic root of 1366444452 is about 1109.6788974616.

The spelling of 1366444452 in words is "one billion, three hundred sixty-six million, four hundred forty-four thousand, four hundred fifty-two".