1383387668 has 24 divisors (see below), whose sum is σ = 2642875368. Its totient is φ = 629738496.

The previous prime is 1383387653. The next prime is 1383387673. The reversal of 1383387668 is 8667833831.

It can be written as a sum of positive squares in 4 ways, for example, as 119727364 + 1263660304 = 10942^2 + 35548^2 .

It is a super-2 number, since 2×1383387668² = 3827522879948956448, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 178421 + ... + 186012.

It is an arithmetic number, because the mean of its divisors is an integer number (110119807).

Almost surely, 2^1383387668 is an apocalyptic number.

It is an amenable number.

1383387668 is a deficient number, since it is larger than the sum of its proper divisors (1259487700).

1383387668 is a wasteful number, since it uses less digits than its factorization.

1383387668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364523 (or 364521 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The square root of 1383387668 is about 37193.9197719197. The cubic root of 1383387668 is about 1114.2465548713.

The spelling of 1383387668 in words is "one billion, three hundred eighty-three million, three hundred eighty-seven thousand, six hundred sixty-eight".