6668448 has 24 divisors (see below), whose sum is σ = 17504928. Its totient is φ = 2222784.

The previous prime is 6668447. The next prime is 6668461. The reversal of 6668448 is 8448666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6668447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34636 + ... + 34827.

It is an arithmetic number, because the mean of its divisors is an integer number (729372).

Almost surely, 2^6668448 is an apocalyptic number.

It is an amenable number.

6668448 is an abundant number, since it is smaller than the sum of its proper divisors (10836480).

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

6668448 is a wasteful number, since it uses less digits than its factorization.

6668448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69476 (or 69468 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 6668448 is about 2582.3338281485. Note that the first 3 decimals coincide. The cubic root of 6668448 is about 188.2239672719.

The spelling of 6668448 in words is "six million, six hundred sixty-eight thousand, four hundred forty-eight".