2169830 has 16 divisors (see below), whose sum is σ = 4206384. Its totient is φ = 801120.

The previous prime is 2169821. The next prime is 2169833. The reversal of 2169830 is 389612.

2169830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2169793 and 2169802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169833) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8216 + ... + 8475.

It is an arithmetic number, because the mean of its divisors is an integer number (262899).

2^2169830 is an apocalyptic number.

2169830 is a deficient number, since it is larger than the sum of its proper divisors (2036554).

2169830 is a wasteful number, since it uses less digits than its factorization.

2169830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16711.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2169830 is about 1473.0342833756. The cubic root of 2169830 is about 129.4618781365.

The spelling of 2169830 in words is "two million, one hundred sixty-nine thousand, eight hundred thirty".