818404608 has 288 divisors, whose sum is σ = 2637250560. Its totient is φ = 220446720.

The previous prime is 818404597. The next prime is 818404661. The reversal of 818404608 is 806404818.

It is a super-2 number, since 2×818404608² = 1339572204791267328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10359513 + ... + 10359591.

It is an arithmetic number, because the mean of its divisors is an integer number (9157120).

Almost surely, 2^818404608 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 818404608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318625280).

818404608 is an abundant number, since it is smaller than the sum of its proper divisors (1818845952).

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

818404608 is a wasteful number, since it uses less digits than its factorization.

818404608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 818404608 is about 28607.7718111705. The cubic root of 818404608 is about 935.3827473949.

The spelling of 818404608 in words is "eight hundred eighteen million, four hundred four thousand, six hundred eight".