6453680 has 20 divisors (see below), whose sum is σ = 15004992. Its totient is φ = 2581440.

The previous prime is 6453679. The next prime is 6453697. The reversal of 6453680 is 863546.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 40256 + ... + 40415.

Almost surely, 2^6453680 is an apocalyptic number.

It is an amenable number.

6453680 is an abundant number, since it is smaller than the sum of its proper divisors (8551312).

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

6453680 is a wasteful number, since it uses less digits than its factorization.

6453680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80684 (or 80678 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6453680 is about 2540.4094158226. The cubic root of 6453680 is about 186.1811931474.

The spelling of 6453680 in words is "six million, four hundred fifty-three thousand, six hundred eighty".