19746768 has 40 divisors (see below), whose sum is σ = 52103808. Its totient is φ = 6441472.

The previous prime is 19746751. The next prime is 19746773. The reversal of 19746768 is 86764791.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121 + ... + 6632.

Almost surely, 2^19746768 is an apocalyptic number.

It is an amenable number.

19746768 is an abundant number, since it is smaller than the sum of its proper divisors (32357040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19746768 is a wasteful number, since it uses less digits than its factorization.

19746768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8811 (or 8805 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 19746768 is about 4443.7335653705. The cubic root of 19746768 is about 270.2912631895.

The spelling of 19746768 in words is "nineteen million, seven hundred forty-six thousand, seven hundred sixty-eight".