818341472 has 144 divisors (see below), whose sum is σ = 1891784160. Its totient is φ = 345692160.

The previous prime is 818341451. The next prime is 818341477. The reversal of 818341472 is 274143818.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818341477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9194804 + ... + 9194892.

It is an arithmetic number, because the mean of its divisors is an integer number (13137390).

Almost surely, 2^818341472 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 818341472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945892080).

818341472 is an abundant number, since it is smaller than the sum of its proper divisors (1073442688).

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

818341472 is a wasteful number, since it uses less digits than its factorization.

818341472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 158 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 818341472 is about 28606.6683135244. The cubic root of 818341472 is about 935.3586933417.

The spelling of 818341472 in words is "eight hundred eighteen million, three hundred forty-one thousand, four hundred seventy-two".