2179868 has 12 divisors (see below), whose sum is σ = 3825360. Its totient is φ = 1086912.

The previous prime is 2179867. The next prime is 2179897. The reversal of 2179868 is 8689712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (318780).

2^2179868 is an apocalyptic number.

It is an amenable number.

2179868 is a deficient number, since it is larger than the sum of its proper divisors (1645492).

2179868 is a wasteful number, since it uses less digits than its factorization.

2179868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1514 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 2179868 is about 1476.4376045062. The cubic root of 2179868 is about 129.6612085766.

The spelling of 2179868 in words is "two million, one hundred seventy-nine thousand, eight hundred sixty-eight".