2108220 has 48 divisors (see below), whose sum is σ = 6054048. Its totient is φ = 547840.

The previous prime is 2108177. The next prime is 2108231. The reversal of 2108220 is 228012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2108220.

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, 2032 + ... + 2888.

It is an arithmetic number, because the mean of its divisors is an integer number (126126).

2^2108220 is an apocalyptic number.

2108220 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 2108220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3027024).

2108220 is an abundant number, since it is smaller than the sum of its proper divisors (3945828).

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

2108220 is a wasteful number, since it uses less digits than its factorization.

2108220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2108220 is about 1451.9710740920. The cubic root of 2108220 is about 128.2247840564.

The spelling of 2108220 in words is "two million, one hundred eight thousand, two hundred twenty".