2144345252 has 72 divisors (see below), whose sum is σ = 4641525504. Its totient is φ = 861305088.

The previous prime is 2144345239. The next prime is 2144345257. The reversal of 2144345252 is 2525434412.

It is not an unprimeable number, because it can be changed into a prime (2144345257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 875093 + ... + 877539.

It is an arithmetic number, because the mean of its divisors is an integer number (64465632).

Almost surely, 2^2144345252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144345252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2320762752).

2144345252 is an abundant number, since it is smaller than the sum of its proper divisors (2497180252).

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

2144345252 is a wasteful number, since it uses less digits than its factorization.

2144345252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745 (or 2736 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 2144345252 is about 46307.0756148561. The cubic root of 2144345252 is about 1289.5303564523.

Adding to 2144345252 its reverse (2525434412), we get a palindrome (4669779664).

The spelling of 2144345252 in words is "two billion, one hundred forty-four million, three hundred forty-five thousand, two hundred fifty-two".