6681456 has 30 divisors (see below), whose sum is σ = 18699200. Its totient is φ = 2227104.

The previous prime is 6681443. The next prime is 6681481. The reversal of 6681456 is 6541866.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6681456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23056 + ... + 23343.

Almost surely, 2^6681456 is an apocalyptic number.

It is an amenable number.

6681456 is an abundant number, since it is smaller than the sum of its proper divisors (12017744).

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

6681456 is a wasteful number, since it uses less digits than its factorization.

6681456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46413 (or 46404 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 6681456 is about 2584.8512529738. The cubic root of 6681456 is about 188.3462759442.

The spelling of 6681456 in words is "six million, six hundred eighty-one thousand, four hundred fifty-six".