2163830 has 16 divisors (see below), whose sum is σ = 3923424. Its totient is φ = 859200.

The previous prime is 2163829. The next prime is 2163851. The reversal of 2163830 is 383612.

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 = 2163796 and 2163805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794 + ... + 2226.

It is an arithmetic number, because the mean of its divisors is an integer number (245214).

2^2163830 is an apocalyptic number.

2163830 is a deficient number, since it is larger than the sum of its proper divisors (1759594).

2163830 is a wasteful number, since it uses less digits than its factorization.

2163830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2163830 is about 1470.9962610422. The cubic root of 2163830 is about 129.3424389262.

The spelling of 2163830 in words is "two million, one hundred sixty-three thousand, eight hundred thirty".