1003980 has 48 divisors (see below), whose sum is σ = 2913120. Its totient is φ = 258048.

The previous prime is 1003963. The next prime is 1004027. The reversal of 1003980 is 893001.

It is an unprimeable number.

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, 1452 + ... + 2028.

It is an arithmetic number, because the mean of its divisors is an integer number (60690).

2^1003980 is an apocalyptic number.

1003980 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 1003980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456560).

1003980 is an abundant number, since it is smaller than the sum of its proper divisors (1909140).

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

1003980 is a wasteful number, since it uses less digits than its factorization.

1003980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1003980 is about 1001.9880238805. The cubic root of 1003980 is about 100.1324910504.

Adding to 1003980 its sum of digits (21), we get a palindrome (1004001).

Adding to 1003980 its reverse (893001), we get a palindrome (1896981).

The spelling of 1003980 in words is "one million, three thousand, nine hundred eighty".