2861228000 has 96 divisors (see below), whose sum is σ = 7067668608. Its totient is φ = 1138368000.

The previous prime is 2861227979. The next prime is 2861228003. The reversal of 2861228000 is 8221682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861228003) 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 15 ways as a sum of consecutive naturals, for example, 786185 + ... + 789815.

It is an arithmetic number, because the mean of its divisors is an integer number (73621548).

Almost surely, 2^2861228000 is an apocalyptic number.

2861228000 is a gapful number since it is divisible by the number (20) 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 2861228000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3533834304).

2861228000 is an abundant number, since it is smaller than the sum of its proper divisors (4206440608).

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

2861228000 is a wasteful number, since it uses less digits than its factorization.

2861228000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853 (or 3835 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2861228000 is about 53490.4477453685. The cubic root of 2861228000 is about 1419.6593774017.

Adding to 2861228000 its reverse (8221682), we get a palindrome (2869449682).

The spelling of 2861228000 in words is "two billion, eight hundred sixty-one million, two hundred twenty-eight thousand".