2144886240 has 96 divisors (see below), whose sum is σ = 7721602560. Its totient is φ = 490258944.

The previous prime is 2144886199. The next prime is 2144886241. The reversal of 2144886240 is 426884412.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144886241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 315820 + ... + 322539.

It is an arithmetic number, because the mean of its divisors is an integer number (80433360).

Almost surely, 2^2144886240 is an apocalyptic number.

2144886240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144886240 is an abundant number, since it is smaller than the sum of its proper divisors (5576716320).

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

2144886240 is a wasteful number, since it uses less digits than its factorization.

2144886240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638384 (or 638376 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 39.

The square root of 2144886240 is about 46312.9165568311. The cubic root of 2144886240 is about 1289.6387907618.

The spelling of 2144886240 in words is "two billion, one hundred forty-four million, eight hundred eighty-six thousand, two hundred forty".