816281088 has 240 divisors, whose sum is σ = 2600547840. Its totient is φ = 222842880.

The previous prime is 816281047. The next prime is 816281099. The reversal of 816281088 is 880182618.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10332633 + ... + 10332711.

It is an arithmetic number, because the mean of its divisors is an integer number (10835616).

Almost surely, 2^816281088 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 816281088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300273920).

816281088 is an abundant number, since it is smaller than the sum of its proper divisors (1784266752).

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

816281088 is an equidigital number, since it uses as much as digits as its factorization.

816281088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 42.

The square root of 816281088 is about 28570.6333146467. The cubic root of 816281088 is about 934.5730320080.

The spelling of 816281088 in words is "eight hundred sixteen million, two hundred eighty-one thousand, eighty-eight".