6382720 has 32 divisors (see below), whose sum is σ = 15260220. Its totient is φ = 2552832.

The previous prime is 6382711. The next prime is 6382751. The reversal of 6382720 is 272836.

It can be written as a sum of positive squares in 2 ways, for example, as 5875776 + 506944 = 2424^2 + 712^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×6382720² = 81478229196800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4347 + ... + 5626.

Almost surely, 2^6382720 is an apocalyptic number.

It is an amenable number.

6382720 is an abundant number, since it is smaller than the sum of its proper divisors (8877500).

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

6382720 is an equidigital number, since it uses as much as digits as its factorization.

6382720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992 (or 9980 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 6382720 is about 2526.4045598439. The cubic root of 6382720 is about 185.4963055330.

The spelling of 6382720 in words is "six million, three hundred eighty-two thousand, seven hundred twenty".