19680944 has 20 divisors (see below), whose sum is σ = 38211096. Its totient is φ = 9820032.

The previous prime is 19680923. The next prime is 19680953. The reversal of 19680944 is 44908691.

It is a super-2 number, since 2×19680944² = 774679113462272, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9332 + ... + 11244.

Almost surely, 2^19680944 is an apocalyptic number.

It is an amenable number.

19680944 is a deficient number, since it is larger than the sum of its proper divisors (18530152).

19680944 is a wasteful number, since it uses less digits than its factorization.

19680944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 19680944 is about 4436.3209983048. The cubic root of 19680944 is about 269.9905986667.

The spelling of 19680944 in words is "nineteen million, six hundred eighty thousand, nine hundred forty-four".