19660046 has 8 divisors (see below), whose sum is σ = 33702960. Its totient is φ = 8425728.

The previous prime is 19660037. The next prime is 19660051. The reversal of 19660046 is 64006691.

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

It is a junction number, because it is equal to n+sod(n) for n = 19659994 and 19660021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702131 + ... + 702158.

It is an arithmetic number, because the mean of its divisors is an integer number (4212870).

Almost surely, 2^19660046 is an apocalyptic number.

19660046 is a deficient number, since it is larger than the sum of its proper divisors (14042914).

19660046 is a wasteful number, since it uses less digits than its factorization.

19660046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404298.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 19660046 is about 4433.9650427129. The cubic root of 19660046 is about 269.8950026125.

The spelling of 19660046 in words is "nineteen million, six hundred sixty thousand, forty-six".