19682066 has 16 divisors (see below), whose sum is σ = 30927744. Its totient is φ = 9376224.

The previous prime is 19682063. The next prime is 19682093. The reversal of 19682066 is 66028691.

It is not an unprimeable number, because it can be changed into a prime (19682063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13715 + ... + 15081.

It is an arithmetic number, because the mean of its divisors is an integer number (1932984).

Almost surely, 2^19682066 is an apocalyptic number.

19682066 is a deficient number, since it is larger than the sum of its proper divisors (11245678).

19682066 is a wasteful number, since it uses less digits than its factorization.

19682066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705.

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

The square root of 19682066 is about 4436.4474526359. The cubic root of 19682066 is about 269.9957292420.

The spelling of 19682066 in words is "nineteen million, six hundred eighty-two thousand, sixty-six".