8228781000 has 384 divisors, whose sum is σ = 31063443840. Its totient is φ = 1947456000.

The previous prime is 8228780999. The next prime is 8228781017. The reversal of 8228781000 is 1878228.

It is a super-2 number, since 2×8228781000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4256034 + ... + 4257966.

It is an arithmetic number, because the mean of its divisors is an integer number (80894385).

Almost surely, 2^8228781000 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 8228781000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15531721920).

8228781000 is an abundant number, since it is smaller than the sum of its proper divisors (22834662840).

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

8228781000 is a wasteful number, since it uses less digits than its factorization.

8228781000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 8228781000 is about 90712.6286687802. The cubic root of 8228781000 is about 2018.8861780994.

The spelling of 8228781000 in words is "eight billion, two hundred twenty-eight million, seven hundred eighty-one thousand".