660682444 has 24 divisors (see below), whose sum is σ = 1200761408. Its totient is φ = 317837520.

The previous prime is 660682403. The next prime is 660682453. The reversal of 660682444 is 444286066.

660682444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 660682397 and 660682406.

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, 17142 + ... + 40189.

Almost surely, 2^660682444 is an apocalyptic number.

It is an amenable number.

660682444 is a deficient number, since it is larger than the sum of its proper divisors (540078964).

660682444 is a wasteful number, since it uses less digits than its factorization.

660682444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57445 (or 57443 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 660682444 is about 25703.7437740108. The cubic root of 660682444 is about 870.9587545602.

The spelling of 660682444 in words is "six hundred sixty million, six hundred eighty-two thousand, four hundred forty-four".