1812704168 has 64 divisors (see below), whose sum is σ = 3847979520. Its totient is φ = 793094400.

The previous prime is 1812704167. The next prime is 1812704171. The reversal of 1812704168 is 8614072181.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1812704167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535730 + ... + 539102.

It is an arithmetic number, because the mean of its divisors is an integer number (60124680).

Almost surely, 2^1812704168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1812704168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923989760).

1812704168 is an abundant number, since it is smaller than the sum of its proper divisors (2035275352).

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

1812704168 is a wasteful number, since it uses less digits than its factorization.

1812704168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618 (or 3614 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 1812704168 is about 42575.8636788498. The cubic root of 1812704168 is about 1219.2955191069.

The spelling of 1812704168 in words is "one billion, eight hundred twelve million, seven hundred four thousand, one hundred sixty-eight".