1383660 has 36 divisors (see below), whose sum is σ = 4197648. Its totient is φ = 368928.

The previous prime is 1383659. The next prime is 1383667. The reversal of 1383660 is 663831.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 3664 + ... + 4023.

2^1383660 is an apocalyptic number.

1383660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1383660 is an abundant number, since it is smaller than the sum of its proper divisors (2813988).

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

1383660 is a wasteful number, since it uses less digits than its factorization.

1383660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7702 (or 7697 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1383660 is about 1176.2907803770. The cubic root of 1383660 is about 111.4319666477.

The spelling of 1383660 in words is "one million, three hundred eighty-three thousand, six hundred sixty".