2168980 has 24 divisors (see below), whose sum is σ = 4969440. Its totient is φ = 788640.

The previous prime is 2168953. The next prime is 2168987. The reversal of 2168980 is 898612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4710 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (207060).

2^2168980 is an apocalyptic number.

2168980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2168980 is an abundant number, since it is smaller than the sum of its proper divisors (2800460).

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

2168980 is a wasteful number, since it uses less digits than its factorization.

2168980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9879 (or 9877 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2168980 is about 1472.7457350133. The cubic root of 2168980 is about 129.4449709796. Note that the first 3 decimals are identical.

The spelling of 2168980 in words is "two million, one hundred sixty-eight thousand, nine hundred eighty".