6720338 has 32 divisors (see below), whose sum is σ = 11456640. Its totient is φ = 2937600.

The previous prime is 6720331. The next prime is 6720353. The reversal of 6720338 is 8330276.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6720338.

It is not an unprimeable number, because it can be changed into a prime (6720331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 65195 + ... + 65297.

It is an arithmetic number, because the mean of its divisors is an integer number (358020).

Almost surely, 2^6720338 is an apocalyptic number.

6720338 is a deficient number, since it is larger than the sum of its proper divisors (4736302).

6720338 is a wasteful number, since it uses less digits than its factorization.

6720338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 6720338 is about 2592.3614717088. The cubic root of 6720338 is about 188.7109230099.

The spelling of 6720338 in words is "six million, seven hundred twenty thousand, three hundred thirty-eight".