19868343 has 16 divisors (see below), whose sum is σ = 30157056. Its totient is φ = 11517440.

The previous prime is 19868341. The next prime is 19868351. The reversal of 19868343 is 34386891.

It is a happy number.

It is not a de Polignac number, because 19868343 - 2¹ = 19868341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19868295 and 19868304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19868341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12330 + ... + 13847.

It is an arithmetic number, because the mean of its divisors is an integer number (1884816).

Almost surely, 2^19868343 is an apocalyptic number.

19868343 is a deficient number, since it is larger than the sum of its proper divisors (10288713).

19868343 is a wasteful number, since it uses less digits than its factorization.

19868343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26214.

The product of its digits is 124416, while the sum is 42.

The square root of 19868343 is about 4457.3919504571. The cubic root of 19868343 is about 270.8448297658.

The spelling of 19868343 in words is "nineteen million, eight hundred sixty-eight thousand, three hundred forty-three".