19882066 has 8 divisors (see below), whose sum is σ = 30158460. Its totient is φ = 9829248.

The previous prime is 19882043. The next prime is 19882087. The reversal of 19882066 is 66028891.

It can be written as a sum of positive squares in 2 ways, for example, as 17464041 + 2418025 = 4179^2 + 1555^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55671 + ... + 56026.

Almost surely, 2^19882066 is an apocalyptic number.

19882066 is a deficient number, since it is larger than the sum of its proper divisors (10276394).

19882066 is a wasteful number, since it uses less digits than its factorization.

19882066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111788.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 19882066 is about 4458.9310378161. The cubic root of 19882066 is about 270.9071726295.

The spelling of 19882066 in words is "nineteen million, eight hundred eighty-two thousand, sixty-six".