6645246 has 16 divisors (see below), whose sum is σ = 13541904. Its totient is φ = 2173184.

The previous prime is 6645227. The next prime is 6645259. The reversal of 6645246 is 6425466.

It is a Curzon number.

It is a congruent number.

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, 10131 + ... + 10766.

It is an arithmetic number, because the mean of its divisors is an integer number (846369).

Almost surely, 2^6645246 is an apocalyptic number.

6645246 is an abundant number, since it is smaller than the sum of its proper divisors (6896658).

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

6645246 is a wasteful number, since it uses less digits than its factorization.

6645246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20955.

The product of its digits is 34560, while the sum is 33.

The square root of 6645246 is about 2577.8374657841. The cubic root of 6645246 is about 188.0054133042.

The spelling of 6645246 in words is "six million, six hundred forty-five thousand, two hundred forty-six".