6446488 has 8 divisors (see below), whose sum is σ = 12087180. Its totient is φ = 3223240.

The previous prime is 6446483. The next prime is 6446507. The reversal of 6446488 is 8846446.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 6446488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402898 + ... + 402913.

Almost surely, 2^6446488 is an apocalyptic number.

It is an amenable number.

6446488 is a deficient number, since it is larger than the sum of its proper divisors (5640692).

6446488 is a wasteful number, since it uses less digits than its factorization.

6446488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805817 (or 805813 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 6446488 is about 2538.9935013702. The cubic root of 6446488 is about 186.1120071506.

The spelling of 6446488 in words is "six million, four hundred forty-six thousand, four hundred eighty-eight".