196415618 has 24 divisors (see below), whose sum is σ = 345214800. Its totient is φ = 83566728.

The previous prime is 196415617. The next prime is 196415641. The reversal of 196415618 is 816514691.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (196415617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6413 + ... + 20831.

It is an arithmetic number, because the mean of its divisors is an integer number (14383950).

Almost surely, 2^196415618 is an apocalyptic number.

196415618 is a deficient number, since it is larger than the sum of its proper divisors (148799182).

196415618 is a wasteful number, since it uses less digits than its factorization.

196415618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14574 (or 14567 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 196415618 is about 14014.8356394215. The cubic root of 196415618 is about 581.2888678213.

The spelling of 196415618 in words is "one hundred ninety-six million, four hundred fifteen thousand, six hundred eighteen".