2103680 has 64 divisors (see below), whose sum is σ = 5324400. Its totient is φ = 792576.

The previous prime is 2103679. The next prime is 2103683. The reversal of 2103680 is 863012.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12074 + ... + 12246.

2^2103680 is an apocalyptic number.

2103680 is a gapful number since it is divisible by the number (20) 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 2103680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2662200).

2103680 is an abundant number, since it is smaller than the sum of its proper divisors (3220720).

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

2103680 is a wasteful number, since it uses less digits than its factorization.

2103680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2103680 is about 1450.4068394764. The cubic root of 2103680 is about 128.1326749319.

Adding to 2103680 its reverse (863012), we get a palindrome (2966692).

The spelling of 2103680 in words is "two million, one hundred three thousand, six hundred eighty".