6380720 has 40 divisors (see below), whose sum is σ = 15159744. Its totient is φ = 2496512.

The previous prime is 6380681. The next prime is 6380741. The reversal of 6380720 is 270836.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 6380720.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2912 + ... + 4608.

Almost surely, 2^6380720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6380720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7579872).

6380720 is an abundant number, since it is smaller than the sum of its proper divisors (8779024).

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

6380720 is a wasteful number, since it uses less digits than its factorization.

6380720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 6380720 is about 2526.0087094070. The cubic root of 6380720 is about 185.4769286651.

The spelling of 6380720 in words is "six million, three hundred eighty thousand, seven hundred twenty".