19620982 has 4 divisors (see below), whose sum is σ = 29431476. Its totient is φ = 9810490.

The previous prime is 19620947. The next prime is 19620983. The reversal of 19620982 is 28902691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28902691 = 601 ⋅48091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19620983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4905244 + ... + 4905247.

It is an arithmetic number, because the mean of its divisors is an integer number (7357869).

Almost surely, 2^19620982 is an apocalyptic number.

19620982 is a deficient number, since it is larger than the sum of its proper divisors (9810494).

19620982 is an equidigital number, since it uses as much as digits as its factorization.

19620982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9810493.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 19620982 is about 4429.5577657369. The cubic root of 19620982 is about 269.7161259692.

It can be divided in two parts, 19620 and 982, that added together give a palindrome (20602).

The spelling of 19620982 in words is "nineteen million, six hundred twenty thousand, nine hundred eighty-two".