1383680 has 72 divisors (see below), whose sum is σ = 3532032. Its totient is φ = 518144.

The previous prime is 1383667. The next prime is 1383691. The reversal of 1383680 is 863831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29417 + ... + 29463.

It is an arithmetic number, because the mean of its divisors is an integer number (49056).

2^1383680 is an apocalyptic number.

1383680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1766016).

1383680 is an abundant number, since it is smaller than the sum of its proper divisors (2148352).

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

1383680 is an equidigital number, since it uses as much as digits as its factorization.

1383680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1383680 is about 1176.2992816456. The cubic root of 1383680 is about 111.4325035399.

The spelling of 1383680 in words is "one million, three hundred eighty-three thousand, six hundred eighty".