19963012 has 6 divisors (see below), whose sum is σ = 34935278. Its totient is φ = 9981504.

The previous prime is 19963007. The next prime is 19963019. The reversal of 19963012 is 21036991.

It can be written as a sum of positive squares in only one way, i.e., 16451136 + 3511876 = 4056^2 + 1874^2 .

It is a super-2 number, since 2×19963012² = 797043696224288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19963019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495373 + ... + 2495380.

Almost surely, 2^19963012 is an apocalyptic number.

It is an amenable number.

19963012 is a deficient number, since it is larger than the sum of its proper divisors (14972266).

19963012 is a wasteful number, since it uses less digits than its factorization.

19963012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990757 (or 4990755 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 19963012 is about 4467.9986571171. The cubic root of 19963012 is about 271.2743235990.

The spelling of 19963012 in words is "nineteen million, nine hundred sixty-three thousand, twelve".