2144264240 has 40 divisors (see below), whose sum is σ = 5202175968. Its totient is φ = 820413440.

The previous prime is 2144264233. The next prime is 2144264261. The reversal of 2144264240 is 424624412.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 580841 + ... + 584520.

Almost surely, 2^2144264240 is an apocalyptic number.

2144264240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144264240 is an abundant number, since it is smaller than the sum of its proper divisors (3057911728).

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

2144264240 is a wasteful number, since it uses less digits than its factorization.

2144264240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165397 (or 1165391 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 2144264240 is about 46306.2008806596. The cubic root of 2144264240 is about 1289.5141170355.

Adding to 2144264240 its reverse (424624412), we get a palindrome (2568888652).

The spelling of 2144264240 in words is "two billion, one hundred forty-four million, two hundred sixty-four thousand, two hundred forty".