19788741 has 12 divisors (see below), whose sum is σ = 32667232. Its totient is φ = 11307816.

The previous prime is 19788721. The next prime is 19788749. The reversal of 19788741 is 14788791.

It is not a de Polignac number, because 19788741 - 2¹³ = 19780549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19788749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156991 + ... + 157116.

Almost surely, 2^19788741 is an apocalyptic number.

It is an amenable number.

19788741 is a deficient number, since it is larger than the sum of its proper divisors (12878491).

19788741 is a wasteful number, since it uses less digits than its factorization.

19788741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314120 (or 314117 counting only the distinct ones).

The product of its digits is 112896, while the sum is 45.

The square root of 19788741 is about 4448.4537763137. The cubic root of 19788741 is about 270.4826347015.

The spelling of 19788741 in words is "nineteen million, seven hundred eighty-eight thousand, seven hundred forty-one".