1383668 has 48 divisors (see below), whose sum is σ = 2963520. Its totient is φ = 556800.

The previous prime is 1383667. The next prime is 1383691. The reversal of 1383668 is 8663831.

It is a happy number.

Its product of digits (20736) is a multiple of the sum of its prime factors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23423 + ... + 23481.

It is an arithmetic number, because the mean of its divisors is an integer number (61740).

2^1383668 is an apocalyptic number.

It is an amenable number.

1383668 is an abundant number, since it is smaller than the sum of its proper divisors (1579852).

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

1383668 is a wasteful number, since it uses less digits than its factorization.

1383668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 126 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 1383668 is about 1176.2941808918. The cubic root of 1383668 is about 111.4321814052.

The spelling of 1383668 in words is "one million, three hundred eighty-three thousand, six hundred sixty-eight".