668024 has 32 divisors (see below), whose sum is σ = 1459200. Its totient is φ = 280800.

The previous prime is 668009. The next prime is 668029. The reversal of 668024 is 420866.

It is a junction number, because it is equal to n+sod(n) for n = 667984 and 668002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668029) 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, 4349 + ... + 4499.

It is an arithmetic number, because the mean of its divisors is an integer number (45600).

2⁶⁶⁸⁰²⁴ 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 668024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729600).

668024 is an abundant number, since it is smaller than the sum of its proper divisors (791176).

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

668024 is a wasteful number, since it uses less digits than its factorization.

668024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 668024 is about 817.3273517998. The cubic root of 668024 is about 87.4172932772.

The spelling of 668024 in words is "six hundred sixty-eight thousand, twenty-four".