2108920 has 32 divisors (see below), whose sum is σ = 5177520. Its totient is φ = 766720.

The previous prime is 2108881. The next prime is 2108927. The reversal of 2108920 is 298012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2108891 and 2108900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1957 + ... + 2836.

2^2108920 is an apocalyptic number.

2108920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108920 is an abundant number, since it is smaller than the sum of its proper divisors (3068600).

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

2108920 is a wasteful number, since it uses less digits than its factorization.

2108920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815 (or 4811 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2108920 is about 1452.2121057201. The cubic root of 2108920 is about 128.2389741340.

The spelling of 2108920 in words is "two million, one hundred eight thousand, nine hundred twenty".