2108780 has 24 divisors (see below), whose sum is σ = 4478208. Its totient is φ = 834048.

The previous prime is 2108773. The next prime is 2108807. The reversal of 2108780 is 878012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1397 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (186592).

2^2108780 is an apocalyptic number.

2108780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108780 is an abundant number, since it is smaller than the sum of its proper divisors (2369428).

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

2108780 is a wasteful number, since it uses less digits than its factorization.

2108780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 2108780 is about 1452.1639025950. The cubic root of 2108780 is about 128.2361363697.

The spelling of 2108780 in words is "two million, one hundred eight thousand, seven hundred eighty".