6445080 has 48 divisors (see below), whose sum is σ = 20947680. Its totient is φ = 1718592.

The previous prime is 6445079. The next prime is 6445093. The reversal of 6445080 is 805446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8592 + ... + 9311.

It is an arithmetic number, because the mean of its divisors is an integer number (436410).

Almost surely, 2^6445080 is an apocalyptic number.

6445080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6445080 is an abundant number, since it is smaller than the sum of its proper divisors (14502600).

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

6445080 is a wasteful number, since it uses less digits than its factorization.

6445080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17920 (or 17913 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 6445080 is about 2538.7162110011. The cubic root of 6445080 is about 186.0984563725.

The spelling of 6445080 in words is "six million, four hundred forty-five thousand, eighty".