668124 has 36 divisors (see below), whose sum is σ = 1720264. Its totient is φ = 218592.

The previous prime is 668111. The next prime is 668141. The reversal of 668124 is 421866.

668124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2274 + ... + 2550.

2⁶⁶⁸¹²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 668124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860132).

668124 is an abundant number, since it is smaller than the sum of its proper divisors (1052140).

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

668124 is a wasteful number, since it uses less digits than its factorization.

668124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 349 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 668124 is about 817.3885245096. The cubic root of 668124 is about 87.4216550432.

The spelling of 668124 in words is "six hundred sixty-eight thousand, one hundred twenty-four".