194664812 has 6 divisors (see below), whose sum is σ = 340663428. Its totient is φ = 97332404.

The previous prime is 194664803. The next prime is 194664829. The reversal of 194664812 is 218466491.

It is a self number, because there is not a number n which added to its sum of digits gives 194664812.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24333098 + ... + 24333105.

It is an arithmetic number, because the mean of its divisors is an integer number (56777238).

Almost surely, 2^194664812 is an apocalyptic number.

It is an amenable number.

194664812 is a deficient number, since it is larger than the sum of its proper divisors (145998616).

194664812 is a wasteful number, since it uses less digits than its factorization.

194664812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48666207 (or 48666205 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 194664812 is about 13952.2332262617. The cubic root of 194664812 is about 579.5565496624.

The spelling of 194664812 in words is "one hundred ninety-four million, six hundred sixty-four thousand, eight hundred twelve".