816268288 has 44 divisors (see below), whose sum is σ = 1780103952. Its totient is φ = 371025920.

The previous prime is 816268283. The next prime is 816268319. The reversal of 816268288 is 882862618.

It is a tau number, because it is divible by the number of its divisors (44).

It is not an unprimeable number, because it can be changed into a prime (816268283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24970 + ... + 47497.

It is an arithmetic number, because the mean of its divisors is an integer number (40456908).

Almost surely, 2^816268288 is an apocalyptic number.

816268288 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

816268288 is an abundant number, since it is smaller than the sum of its proper divisors (963835664).

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

816268288 is a wasteful number, since it uses less digits than its factorization.

816268288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72498 (or 72480 counting only the distinct ones).

The product of its digits is 589824, while the sum is 49.

The square root of 816268288 is about 28570.4093075336. The cubic root of 816268288 is about 934.5681470089.

The spelling of 816268288 in words is "eight hundred sixteen million, two hundred sixty-eight thousand, two hundred eighty-eight".