19882682 has 4 divisors (see below), whose sum is σ = 29824026. Its totient is φ = 9941340.

The previous prime is 19882631. The next prime is 19882693. The reversal of 19882682 is 28628891.

It is a Cunningham number, because it is equal to 4459²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19882681 + 1 = 4459^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4970669 + ... + 4970672.

Almost surely, 2^19882682 is an apocalyptic number.

19882682 is a deficient number, since it is larger than the sum of its proper divisors (9941344).

19882682 is an equidigital number, since it uses as much as digits as its factorization.

19882682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9941343.

The product of its digits is 110592, while the sum is 44.

The square root of 19882682 is about 4459.0001121328. Note that the first 3 decimals coincide. The cubic root of 19882682 is about 270.9099704121.

The spelling of 19882682 in words is "nineteen million, eight hundred eighty-two thousand, six hundred eighty-two".