666234 has 12 divisors (see below), whose sum is σ = 1443546. Its totient is φ = 222072.

The previous prime is 666233. The next prime is 666269. The reversal of 666234 is 432666.

666234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 567009 + 99225 = 753^2 + 315^2 .

It is a junction number, because it is equal to n+sod(n) for n = 666198 and 666207.

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 5 ways as a sum of consecutive naturals, for example, 18489 + ... + 18524.

2⁶⁶⁶²³⁴ is an apocalyptic number.

666234 is an abundant number, since it is smaller than the sum of its proper divisors (777312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666234 is a wasteful number, since it uses less digits than its factorization.

666234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37021 (or 37018 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 666234 is about 816.2315847846. The cubic root of 666234 is about 87.3391439264.

It can be divided in two parts, 666 and 234, that added together give a square (900 = 30²).

The spelling of 666234 in words is "six hundred sixty-six thousand, two hundred thirty-four".