19680772 has 6 divisors (see below), whose sum is σ = 34441358. Its totient is φ = 9840384.

The previous prime is 19680769. The next prime is 19680823. The reversal of 19680772 is 27708691.

It can be written as a sum of positive squares in only one way, i.e., 11930116 + 7750656 = 3454^2 + 2784^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460093 + ... + 2460100.

Almost surely, 2^19680772 is an apocalyptic number.

It is an amenable number.

19680772 is a deficient number, since it is larger than the sum of its proper divisors (14760586).

19680772 is a wasteful number, since it uses less digits than its factorization.

19680772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920197 (or 4920195 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 19680772 is about 4436.3016128302. The cubic root of 19680772 is about 269.9898121442.

The spelling of 19680772 in words is "nineteen million, six hundred eighty thousand, seven hundred seventy-two".