2104820 has 48 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 766080.

The previous prime is 2104811. The next prime is 2104841. The reversal of 2104820 is 284012.

2104820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10925 + ... + 11115.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^2104820 is an apocalyptic number.

2104820 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 2104820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419200).

2104820 is an abundant number, since it is smaller than the sum of its proper divisors (2733580).

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

2104820 is a wasteful number, since it uses less digits than its factorization.

2104820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2104820 is about 1450.7997794320. The cubic root of 2104820 is about 128.1558161054.

Adding to 2104820 its reverse (284012), we get a palindrome (2388832).

The spelling of 2104820 in words is "two million, one hundred four thousand, eight hundred twenty".