2159980 has 12 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 863984.

The previous prime is 2159959. The next prime is 2160001. The reversal of 2159980 is 899512.

2159980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2159959) and next prime (2160001).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53980 + ... + 54019.

It is an arithmetic number, because the mean of its divisors is an integer number (378000).

2^2159980 is an apocalyptic number.

2159980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2159980 is an abundant number, since it is smaller than the sum of its proper divisors (2376020).

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

2159980 is a wasteful number, since it uses less digits than its factorization.

2159980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108008 (or 108006 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 2159980 is about 1469.6870415160. The cubic root of 2159980 is about 129.2656824313.

The spelling of 2159980 in words is "two million, one hundred fifty-nine thousand, nine hundred eighty".