19683340 has 12 divisors (see below), whose sum is σ = 41335056. Its totient is φ = 7873328.

The previous prime is 19683319. The next prime is 19683341. The reversal of 19683340 is 4338691.

It is a junction number, because it is equal to n+sod(n) for n = 19683296 and 19683305.

It is not an unprimeable number, because it can be changed into a prime (19683341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492064 + ... + 492103.

It is an arithmetic number, because the mean of its divisors is an integer number (3444588).

Almost surely, 2^19683340 is an apocalyptic number.

19683340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19683340 is an abundant number, since it is smaller than the sum of its proper divisors (21651716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19683340 is a wasteful number, since it uses less digits than its factorization.

19683340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984176 (or 984174 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 19683340 is about 4436.5910336654. The cubic root of 19683340 is about 270.0015546321.

The spelling of 19683340 in words is "nineteen million, six hundred eighty-three thousand, three hundred forty".