666048 has 28 divisors (see below), whose sum is σ = 1762760. Its totient is φ = 221952.

The previous prime is 666041. The next prime is 666067. The reversal of 666048 is 840666.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 666048.

It is not an unprimeable number, because it can be changed into a prime (666041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543 + ... + 1926.

2⁶⁶⁶⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

666048 is an abundant number, since it is smaller than the sum of its proper divisors (1096712).

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

666048 is a wasteful number, since it uses less digits than its factorization.

666048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 666048 is about 816.1176385791. The cubic root of 666048 is about 87.3310153546.

The spelling of 666048 in words is "six hundred sixty-six thousand, forty-eight".