2179938 has 16 divisors (see below), whose sum is σ = 4375296. Its totient is φ = 724080.

The previous prime is 2179921. The next prime is 2179939. The reversal of 2179938 is 8399712.

It is a junction number, because it is equal to n+sod(n) for n = 2179896 and 2179905.

It is not an unprimeable number, because it can be changed into a prime (2179939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095 + ... + 2957.

It is an arithmetic number, because the mean of its divisors is an integer number (273456).

2^2179938 is an apocalyptic number.

2179938 is an abundant number, since it is smaller than the sum of its proper divisors (2195358).

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

2179938 is a wasteful number, since it uses less digits than its factorization.

2179938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289.

The product of its digits is 27216, while the sum is 39.

The square root of 2179938 is about 1476.4613100247. The cubic root of 2179938 is about 129.6625964568.

The spelling of 2179938 in words is "two million, one hundred seventy-nine thousand, nine hundred thirty-eight".