668252 has 24 divisors (see below), whose sum is σ = 1284192. Its totient is φ = 302400.

The previous prime is 668243. The next prime is 668273. The reversal of 668252 is 252866.

It is a congruent number.

It is an unprimeable number.

668252 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3602 + ... + 3782.

It is an arithmetic number, because the mean of its divisors is an integer number (53508).

2⁶⁶⁸²⁵² is an apocalyptic number.

It is an amenable number.

668252 is a deficient number, since it is larger than the sum of its proper divisors (615940).

668252 is a wasteful number, since it uses less digits than its factorization.

668252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 668252 is about 817.4668188985. The cubic root of 668252 is about 87.4272374687.

The spelling of 668252 in words is "six hundred sixty-eight thousand, two hundred fifty-two".