2186226812 has 96 divisors (see below), whose sum is σ = 4904976384. Its totient is φ = 827870400.

The previous prime is 2186226719. The next prime is 2186226821.

2186226812 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5072237 + ... + 5072667.

It is an arithmetic number, because the mean of its divisors is an integer number (51093504).

Almost surely, 2^2186226812 is an apocalyptic number.

2186226812 is a gapful number since it is divisible by the number (22) 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 2186226812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2452488192).

2186226812 is an abundant number, since it is smaller than the sum of its proper divisors (2718749572).

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

2186226812 is a wasteful number, since it uses less digits than its factorization.

2186226812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 877 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 2186226812 is about 46757.1044013634. The cubic root of 2186226812 is about 1297.8716281600.

The spelling of 2186226812 in words is "two billion, one hundred eighty-six million, two hundred twenty-six thousand, eight hundred twelve".