19798082 has 4 divisors (see below), whose sum is σ = 29697126. Its totient is φ = 9899040.

The previous prime is 19798069. The next prime is 19798087. The reversal of 19798082 is 28089791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28089791 = 941 ⋅29851.

It can be written as a sum of positive squares in only one way, i.e., 19439281 + 358801 = 4409^2 + 599^2 .

It is not an unprimeable number, because it can be changed into a prime (19798087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4949519 + ... + 4949522.

Almost surely, 2^19798082 is an apocalyptic number.

19798082 is a deficient number, since it is larger than the sum of its proper divisors (9899044).

19798082 is an equidigital number, since it uses as much as digits as its factorization.

19798082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9899043.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 19798082 is about 4449.5035678152. The cubic root of 19798082 is about 270.5251871955.

The spelling of 19798082 in words is "nineteen million, seven hundred ninety-eight thousand, eighty-two".