2193830 has 16 divisors (see below), whose sum is σ = 4000320. Its totient is φ = 866112.

The previous prime is 2193827. The next prime is 2193847. The reversal of 2193830 is 383912.

2193830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2193830.

It is a congruent number.

It is an unprimeable number.

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, 599 + ... + 2178.

It is an arithmetic number, because the mean of its divisors is an integer number (250020).

2^2193830 is an apocalyptic number.

2193830 is a deficient number, since it is larger than the sum of its proper divisors (1806490).

2193830 is a wasteful number, since it uses less digits than its factorization.

2193830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2193830 is about 1481.1583304968. The cubic root of 2193830 is about 129.9374452493.

The spelling of 2193830 in words is "two million, one hundred ninety-three thousand, eight hundred thirty".