6642304 has 16 divisors (see below), whose sum is σ = 13232970. Its totient is φ = 3321088.

The previous prime is 6642301. The next prime is 6642319. The reversal of 6642304 is 4032466.

It can be written as a sum of positive squares in only one way, i.e., 6512704 + 129600 = 2552^2 + 360^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (6642301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25819 + ... + 26074.

Almost surely, 2^6642304 is an apocalyptic number.

6642304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6642304 is a deficient number, since it is larger than the sum of its proper divisors (6590666).

6642304 is an equidigital number, since it uses as much as digits as its factorization.

6642304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51907 (or 51895 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 6642304 is about 2577.2667692732. The cubic root of 6642304 is about 187.9776644659.

The spelling of 6642304 in words is "six million, six hundred forty-two thousand, three hundred four".