668852244 has 36 divisors (see below), whose sum is σ = 1701097216. Its totient is φ = 221581008.

The previous prime is 668852243. The next prime is 668852257. The reversal of 668852244 is 442258866.

668852244 is a `hidden beast` number, since 6 + 6 + 88 + 522 + 44 = 666.

668852244 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 Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 668852244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668852243) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51124 + ... + 62859.

Almost surely, 2^668852244 is an apocalyptic number.

It is an amenable number.

668852244 is an abundant number, since it is smaller than the sum of its proper divisors (1032244972).

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

668852244 is a wasteful number, since it uses less digits than its factorization.

668852244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114156 (or 114151 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 668852244 is about 25862.1778665293. The cubic root of 668852244 is about 874.5340622450.

The spelling of 668852244 in words is "six hundred sixty-eight million, eight hundred fifty-two thousand, two hundred forty-four".