19696426 has 8 divisors (see below), whose sum is σ = 31099680. Its totient is φ = 9329868.

The previous prime is 19696403. The next prime is 19696427. The reversal of 19696426 is 62469691.

It is a happy number.

19696426 is nontrivially palindromic in base 15.

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

It is not an unprimeable number, because it can be changed into a prime (19696427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259126 + ... + 259201.

It is an arithmetic number, because the mean of its divisors is an integer number (3887460).

Almost surely, 2^19696426 is an apocalyptic number.

19696426 is a deficient number, since it is larger than the sum of its proper divisors (11403254).

19696426 is a wasteful number, since it uses less digits than its factorization.

19696426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518348.

The product of its digits is 139968, while the sum is 43.

The square root of 19696426 is about 4438.0655695922. The cubic root of 19696426 is about 270.0613760790.

The spelling of 19696426 in words is "nineteen million, six hundred ninety-six thousand, four hundred twenty-six".