8442729088 has 32 divisors (see below), whose sum is σ = 16920257760. Its totient is φ = 4196076288.

The previous prime is 8442729047. The next prime is 8442729089. The reversal of 8442729088 is 8809272448.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×8442729088² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8442729089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176106 + ... + 218857.

It is an arithmetic number, because the mean of its divisors is an integer number (528758055).

Almost surely, 2^8442729088 is an apocalyptic number.

It is an amenable number.

8442729088 is an abundant number, since it is smaller than the sum of its proper divisors (8477528672).

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

8442729088 is a wasteful number, since it uses less digits than its factorization.

8442729088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395144 (or 395132 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The square root of 8442729088 is about 91884.3244955308. The cubic root of 8442729088 is about 2036.2336864431.

The spelling of 8442729088 in words is "eight billion, four hundred forty-two million, seven hundred twenty-nine thousand, eighty-eight".