19568968 has 16 divisors (see below), whose sum is σ = 37957500. Its totient is φ = 9446976.

The previous prime is 19568963. The next prime is 19568981. The reversal of 19568968 is 86986591.

It can be written as a sum of positive squares in 2 ways, for example, as 19554084 + 14884 = 4422^2 + 122^2 .

It is not an unprimeable number, because it can be changed into a prime (19568963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41943 + ... + 42406.

Almost surely, 2^19568968 is an apocalyptic number.

It is an amenable number.

19568968 is a deficient number, since it is larger than the sum of its proper divisors (18388532).

19568968 is a wasteful number, since it uses less digits than its factorization.

19568968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84384 (or 84380 counting only the distinct ones).

The product of its digits is 933120, while the sum is 52.

The square root of 19568968 is about 4423.6826287608. The cubic root of 19568968 is about 269.4775815112.

The spelling of 19568968 in words is "nineteen million, five hundred sixty-eight thousand, nine hundred sixty-eight".