1383324381 has 12 divisors (see below), whose sum is σ = 2017920060. Its totient is φ = 913084800.

The previous prime is 1383324361. The next prime is 1383324403. The reversal of 1383324381 is 1834233831.

It can be written as a sum of positive squares in 2 ways, for example, as 1156340025 + 226984356 = 34005^2 + 15066^2 .

It is not a de Polignac number, because 1383324381 - 2⁹ = 1383323869 is a prime.

It is a super-2 number, since 2×1383324381² = 3827172686138066322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383324361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 759996 + ... + 761813.

It is an arithmetic number, because the mean of its divisors is an integer number (168160005).

Almost surely, 2^1383324381 is an apocalyptic number.

It is an amenable number.

1383324381 is a deficient number, since it is larger than the sum of its proper divisors (634595679).

1383324381 is a wasteful number, since it uses less digits than its factorization.

1383324381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521916 (or 1521913 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 1383324381 is about 37193.0689914129. The cubic root of 1383324381 is about 1114.2295631539.

The spelling of 1383324381 in words is "one billion, three hundred eighty-three million, three hundred twenty-four thousand, three hundred eighty-one".