666230 has 16 divisors (see below), whose sum is σ = 1270080. Its totient is φ = 250752.

The previous prime is 666229. The next prime is 666233. The reversal of 666230 is 32666.

Added to its reverse (32666) it gives a square (698896 = 836²).

666230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 666196 and 666205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁶⁶⁶²³⁰ is an apocalyptic number.

666230 is a deficient number, since it is larger than the sum of its proper divisors (603850).

666230 is a wasteful number, since it uses less digits than its factorization.

666230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 666230 is about 816.2291344959. The cubic root of 666230 is about 87.3389691343.

Adding to 666230 its reverse (32666), we get a palindrome (698896).

The spelling of 666230 in words is "six hundred sixty-six thousand, two hundred thirty".