2179680 has 96 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 548352.

The previous prime is 2179679. The next prime is 2179693. The reversal of 2179680 is 869712.

It is a tau number, because it is divible by the number of its divisors (96).

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, 9001 + ... + 9239.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^2179680 is an apocalyptic number.

2179680 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 2179680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3628800).

2179680 is an abundant number, since it is smaller than the sum of its proper divisors (5077920).

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

2179680 is a wasteful number, since it uses less digits than its factorization.

2179680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2179680 is about 1476.3739363725. The cubic root of 2179680 is about 129.6574809796.

The spelling of 2179680 in words is "two million, one hundred seventy-nine thousand, six hundred eighty".