2144504520 has 48 divisors (see below), whose sum is σ = 6969640860. Its totient is φ = 571867776.

The previous prime is 2144504513. The next prime is 2144504561. The reversal of 2144504520 is 254054412.

It can be written as a sum of positive squares in 2 ways, for example, as 1998626436 + 145878084 = 44706^2 + 12078^2 .

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 11 ways as a sum of consecutive naturals, for example, 2978119 + ... + 2978838.

Almost surely, 2^2144504520 is an apocalyptic number.

2144504520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144504520 is an abundant number, since it is smaller than the sum of its proper divisors (4825136340).

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

2144504520 is a wasteful number, since it uses less digits than its factorization.

2144504520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5956974 (or 5956967 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2144504520 is about 46308.7952769234. The cubic root of 2144504520 is about 1289.5622816341.

Adding to 2144504520 its reverse (254054412), we get a palindrome (2398558932).

The spelling of 2144504520 in words is "two billion, one hundred forty-four million, five hundred four thousand, five hundred twenty".