1383881768 has 32 divisors (see below), whose sum is σ = 2612554560. Its totient is φ = 687217920.

The previous prime is 1383881761. The next prime is 1383881783. The reversal of 1383881768 is 8671883831.

It is not an unprimeable number, because it can be changed into a prime (1383881761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969071 + ... + 970497.

It is an arithmetic number, because the mean of its divisors is an integer number (81642330).

Almost surely, 2^1383881768 is an apocalyptic number.

It is an amenable number.

1383881768 is a deficient number, since it is larger than the sum of its proper divisors (1228672792).

1383881768 is a wasteful number, since it uses less digits than its factorization.

1383881768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177 (or 2173 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The square root of 1383881768 is about 37200.5613936134. The cubic root of 1383881768 is about 1114.3791963336.

The spelling of 1383881768 in words is "one billion, three hundred eighty-three million, eight hundred eighty-one thousand, seven hundred sixty-eight".