19696445 has 8 divisors (see below), whose sum is σ = 24879840. Its totient is φ = 14927760.

The previous prime is 19696433. The next prime is 19696447. The reversal of 19696445 is 54469691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19696445 - 2¹² = 19692349 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19696396 and 19696405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19696447) by changing a digit.

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, 103571 + ... + 103760.

It is an arithmetic number, because the mean of its divisors is an integer number (3109980).

Almost surely, 2^19696445 is an apocalyptic number.

It is an amenable number.

19696445 is a deficient number, since it is larger than the sum of its proper divisors (5183395).

19696445 is a wasteful number, since it uses less digits than its factorization.

19696445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207355.

The product of its digits is 233280, while the sum is 44.

The square root of 19696445 is about 4438.0677101640. The cubic root of 19696445 is about 270.0614629165.

The spelling of 19696445 in words is "nineteen million, six hundred ninety-six thousand, four hundred forty-five".