19796118 has 16 divisors (see below), whose sum is σ = 40435200. Its totient is φ = 6458216.

The previous prime is 19796107. The next prime is 19796141. The reversal of 19796118 is 81169791.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 19796118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34818 + ... + 35381.

It is an arithmetic number, because the mean of its divisors is an integer number (2527200).

Almost surely, 2^19796118 is an apocalyptic number.

19796118 is an abundant number, since it is smaller than the sum of its proper divisors (20639082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19796118 is a wasteful number, since it uses less digits than its factorization.

19796118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70251.

The product of its digits is 27216, while the sum is 42.

The square root of 19796118 is about 4449.2828635635. The cubic root of 19796118 is about 270.5162413956.

The spelling of 19796118 in words is "nineteen million, seven hundred ninety-six thousand, one hundred eighteen".