244666646 has 16 divisors (see below), whose sum is σ = 429183744. Its totient is φ = 102418344.

The previous prime is 244666619. The next prime is 244666651. The reversal of 244666646 is 646666442.

It is a junction number, because it is equal to n+sod(n) for n = 244666597 and 244666606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202610 + ... + 203813.

It is an arithmetic number, because the mean of its divisors is an integer number (26823984).

Almost surely, 2^244666646 is an apocalyptic number.

244666646 is a deficient number, since it is larger than the sum of its proper divisors (184517098).

244666646 is a wasteful number, since it uses less digits than its factorization.

244666646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406475.

The product of its digits is 995328, while the sum is 44.

The square root of 244666646 is about 15641.8236149114. The cubic root of 244666646 is about 625.4485492620.

The spelling of 244666646 in words is "two hundred forty-four million, six hundred sixty-six thousand, six hundred forty-six".