2103800 has 48 divisors (see below), whose sum is σ = 4995960. Its totient is φ = 823680.

The previous prime is 2103797. The next prime is 2103811. The reversal of 2103800 is 83012.

2103800 = 278² + 279² + ... + 302².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13322 + ... + 13478.

2^2103800 is an apocalyptic number.

2103800 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 2103800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2497980).

2103800 is an abundant number, since it is smaller than the sum of its proper divisors (2892160).

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

2103800 is a wasteful number, since it uses less digits than its factorization.

2103800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2103800 is about 1450.4482065899. The cubic root of 2103800 is about 128.1351112385.

Adding to 2103800 its reverse (83012), we get a palindrome (2186812).

The spelling of 2103800 in words is "two million, one hundred three thousand, eight hundred".