2178230 has 8 divisors (see below), whose sum is σ = 3920832. Its totient is φ = 871288.

The previous prime is 2178223. The next prime is 2178257. The reversal of 2178230 is 328712.

2178230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2178196 and 2178205.

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 3 ways as a sum of consecutive naturals, for example, 108902 + ... + 108921.

It is an arithmetic number, because the mean of its divisors is an integer number (490104).

2^2178230 is an apocalyptic number.

2178230 is a deficient number, since it is larger than the sum of its proper divisors (1742602).

2178230 is a wasteful number, since it uses less digits than its factorization.

2178230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217830.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2178230 is about 1475.8827866738. The cubic root of 2178230 is about 129.6287236923.

It can be divided in two parts, 21782 and 30, that added together give a palindrome (21812).

The spelling of 2178230 in words is "two million, one hundred seventy-eight thousand, two hundred thirty".