818224308 has 48 divisors (see below), whose sum is σ = 2314173120. Its totient is φ = 247946400.

The previous prime is 818224307. The next prime is 818224313. The reversal of 818224308 is 803422818.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818224307) 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 15 ways as a sum of consecutive naturals, for example, 343183 + ... + 345558.

It is an arithmetic number, because the mean of its divisors is an integer number (48211940).

Almost surely, 2^818224308 is an apocalyptic number.

It is an amenable number.

818224308 is an abundant number, since it is smaller than the sum of its proper divisors (1495948812).

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

818224308 is a wasteful number, since it uses less digits than its factorization.

818224308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688765 (or 688757 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 818224308 is about 28604.6203960129. The cubic root of 818224308 is about 935.3140519949.

The spelling of 818224308 in words is "eight hundred eighteen million, two hundred twenty-four thousand, three hundred eight".