1383155044 has 6 divisors (see below), whose sum is σ = 2420521334. Its totient is φ = 691577520.

The previous prime is 1383155021. The next prime is 1383155063. The reversal of 1383155044 is 4405513831.

It can be written as a sum of positive squares in only one way, i.e., 1197160000 + 185995044 = 34600^2 + 13638^2 .

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 as a sum of consecutive naturals, namely, 172894377 + ... + 172894384.

Almost surely, 2^1383155044 is an apocalyptic number.

It is an amenable number.

1383155044 is a deficient number, since it is larger than the sum of its proper divisors (1037366290).

1383155044 is a wasteful number, since it uses less digits than its factorization.

1383155044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345788765 (or 345788763 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1383155044 is about 37190.7924626513. The cubic root of 1383155044 is about 1114.1840958738.

Adding to 1383155044 its reverse (4405513831), we get a palindrome (5788668875).

The spelling of 1383155044 in words is "one billion, three hundred eighty-three million, one hundred fifty-five thousand, forty-four".