19668341 has 16 divisors (see below), whose sum is σ = 24675840. Its totient is φ = 15229680.

The previous prime is 19668323. The next prime is 19668343. The reversal of 19668341 is 14386691.

It is a cyclic number.

It is not a de Polignac number, because 19668341 - 2⁶ = 19668277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19668295 and 19668304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19668343) 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 15 ways as a sum of consecutive naturals, for example, 13070 + ... + 14496.

It is an arithmetic number, because the mean of its divisors is an integer number (1542240).

Almost surely, 2^19668341 is an apocalyptic number.

19668341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19668341 is a deficient number, since it is larger than the sum of its proper divisors (5007499).

19668341 is a wasteful number, since it uses less digits than its factorization.

19668341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624.

The product of its digits is 31104, while the sum is 38.

The square root of 19668341 is about 4434.9003370989. The cubic root of 19668341 is about 269.9329554613.

The spelling of 19668341 in words is "nineteen million, six hundred sixty-eight thousand, three hundred forty-one".