818213088 has 192 divisors, whose sum is σ = 2717245440. Its totient is φ = 209395200.

The previous prime is 818213059. The next prime is 818213113. The reversal of 818213088 is 880312818.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524053 + ... + 525611.

It is an arithmetic number, because the mean of its divisors is an integer number (14152320).

Almost surely, 2^818213088 is an apocalyptic number.

818213088 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818213088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1358622720).

818213088 is an abundant number, since it is smaller than the sum of its proper divisors (1899032352).

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

818213088 is a wasteful number, since it uses less digits than its factorization.

818213088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 39.

The square root of 818213088 is about 28604.4242731784. The cubic root of 818213088 is about 935.3097767729.

The spelling of 818213088 in words is "eight hundred eighteen million, two hundred thirteen thousand, eighty-eight".