669441200 has 60 divisors (see below), whose sum is σ = 1645777848. Its totient is φ = 261542400.

The previous prime is 669441173. The next prime is 669441203. The reversal of 669441200 is 2144966.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (669441203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2261 + ... + 36660.

Almost surely, 2^669441200 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 669441200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822888924).

669441200 is an abundant number, since it is smaller than the sum of its proper divisors (976336648).

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

669441200 is a wasteful number, since it uses less digits than its factorization.

669441200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38982 (or 38971 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 669441200 is about 25873.5617957791. The cubic root of 669441200 is about 874.7906764588.

The spelling of 669441200 in words is "six hundred sixty-nine million, four hundred forty-one thousand, two hundred".