2144227680 has 768 divisors, whose sum is σ = 9388431360. Its totient is φ = 445906944.

The previous prime is 2144227669. The next prime is 2144227681. The reversal of 2144227680 is 867224412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144227681) 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 127 ways as a sum of consecutive naturals, for example, 22105392 + ... + 22105488.

It is an arithmetic number, because the mean of its divisors is an integer number (12224520).

Almost surely, 2^2144227680 is an apocalyptic number.

2144227680 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 2144227680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4694215680).

2144227680 is an abundant number, since it is smaller than the sum of its proper divisors (7244203680).

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

2144227680 is a wasteful number, since it uses less digits than its factorization.

2144227680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2144227680 is about 46305.8061154322. The cubic root of 2144227680 is about 1289.5067881962.

The spelling of 2144227680 in words is "two billion, one hundred forty-four million, two hundred twenty-seven thousand, six hundred eighty".