6644230 has 16 divisors (see below), whose sum is σ = 12345984. Its totient is φ = 2571840.

The previous prime is 6644227. The next prime is 6644269. The reversal of 6644230 is 324466.

It is a junction number, because it is equal to n+sod(n) for n = 6644195 and 6644204.

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, 10407 + ... + 11026.

It is an arithmetic number, because the mean of its divisors is an integer number (771624).

Almost surely, 2^6644230 is an apocalyptic number.

6644230 is a deficient number, since it is larger than the sum of its proper divisors (5701754).

6644230 is a wasteful number, since it uses less digits than its factorization.

6644230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21471.

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

The square root of 6644230 is about 2577.6403938486. The cubic root of 6644230 is about 187.9958313547.

Adding to 6644230 its reverse (324466), we get a palindrome (6968696).

The spelling of 6644230 in words is "six million, six hundred forty-four thousand, two hundred thirty".