669048192 has 192 divisors, whose sum is σ = 2062195200. Its totient is φ = 207470592.

The previous prime is 669048167. The next prime is 669048199. The reversal of 669048192 is 291840966.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669048199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2487034 + ... + 2487302.

It is an arithmetic number, because the mean of its divisors is an integer number (10740600).

Almost surely, 2^669048192 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 669048192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031097600).

669048192 is an abundant number, since it is smaller than the sum of its proper divisors (1393147008).

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

669048192 is a wasteful number, since it uses less digits than its factorization.

669048192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 669048192 is about 25865.9659011605. The cubic root of 669048192 is about 874.6194555290.

The spelling of 669048192 in words is "six hundred sixty-nine million, forty-eight thousand, one hundred ninety-two".