2164838 has 16 divisors (see below), whose sum is σ = 3565296. Its totient is φ = 979680.

The previous prime is 2164817. The next prime is 2164843. The reversal of 2164838 is 8384612.

It is a congruent number.

It is an unprimeable number.

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, 593 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (222831).

2^2164838 is an apocalyptic number.

2164838 is a deficient number, since it is larger than the sum of its proper divisors (1400458).

2164838 is a wasteful number, since it uses less digits than its factorization.

2164838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its digits is 9216, while the sum is 32.

The square root of 2164838 is about 1471.3388460854. The cubic root of 2164838 is about 129.3625201308.

The spelling of 2164838 in words is "two million, one hundred sixty-four thousand, eight hundred thirty-eight".