19838975 has 12 divisors (see below), whose sum is σ = 26493096. Its totient is φ = 14650080.

The previous prime is 19838971. The next prime is 19838989. The reversal of 19838975 is 57983891.

It is not a de Polignac number, because 19838975 - 2² = 19838971 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 (19838971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30197 + ... + 30846.

It is an arithmetic number, because the mean of its divisors is an integer number (2207758).

Almost surely, 2^19838975 is an apocalyptic number.

19838975 is a deficient number, since it is larger than the sum of its proper divisors (6654121).

19838975 is a wasteful number, since it uses less digits than its factorization.

19838975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61066 (or 61061 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 19838975 is about 4454.0964291313. The cubic root of 19838975 is about 270.7113159765.

The spelling of 19838975 in words is "nineteen million, eight hundred thirty-eight thousand, nine hundred seventy-five".