2144450880 has 672 divisors, whose sum is σ = 8946782208. Its totient is φ = 464486400.

The previous prime is 2144450863. The next prime is 2144450881. The reversal of 2144450880 is 880544412.

2144450880 is a `hidden beast` number, since 2 + 144 + 4 + 508 + 8 + 0 = 666.

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 (2144450881) 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 95 ways as a sum of consecutive naturals, for example, 16885377 + ... + 16885503.

It is an arithmetic number, because the mean of its divisors is an integer number (13313664).

Almost surely, 2^2144450880 is an apocalyptic number.

2144450880 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 2144450880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4473391104).

2144450880 is an abundant number, since it is smaller than the sum of its proper divisors (6802331328).

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

2144450880 is a wasteful number, since it uses less digits than its factorization.

2144450880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 2144450880 is about 46308.2161176610. The cubic root of 2144450880 is about 1289.5515297026.

The spelling of 2144450880 in words is "two billion, one hundred forty-four million, four hundred fifty thousand, eight hundred eighty".