19796018 has 16 divisors (see below), whose sum is σ = 32684256. Its totient is φ = 8917440.

The previous prime is 19796017. The next prime is 19796027. The reversal of 19796018 is 81069791.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19796017) 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, 1496 + ... + 6467.

It is an arithmetic number, because the mean of its divisors is an integer number (2042766).

Almost surely, 2^19796018 is an apocalyptic number.

19796018 is a deficient number, since it is larger than the sum of its proper divisors (12888238).

19796018 is a wasteful number, since it uses less digits than its factorization.

19796018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8089.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 19796018 is about 4449.2716257833. The cubic root of 19796018 is about 270.5157858910.

It can be divided in two parts, 1979 and 6018, that added together give a palindrome (7997).

The spelling of 19796018 in words is "nineteen million, seven hundred ninety-six thousand, eighteen".