668424260 has 24 divisors (see below), whose sum is σ = 1604218560. Its totient is φ = 229173984.

The previous prime is 668424247. The next prime is 668424269. The reversal of 668424260 is 62424866.

668424260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (668424269) 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, 2387090 + ... + 2387369.

It is an arithmetic number, because the mean of its divisors is an integer number (66842440).

Almost surely, 2^668424260 is an apocalyptic number.

It is an amenable number.

668424260 is an abundant number, since it is smaller than the sum of its proper divisors (935794300).

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

668424260 is a wasteful number, since it uses less digits than its factorization.

668424260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774475 (or 4774473 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 668424260 is about 25853.9022199745. The cubic root of 668424260 is about 874.3474906713.

The spelling of 668424260 in words is "six hundred sixty-eight million, four hundred twenty-four thousand, two hundred sixty".