2144505072 has 80 divisors (see below), whose sum is σ = 5847224960. Its totient is φ = 675392256.

The previous prime is 2144505071. The next prime is 2144505127. The reversal of 2144505072 is 2705054412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144505071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359103 + ... + 365025.

It is an arithmetic number, because the mean of its divisors is an integer number (73090312).

Almost surely, 2^2144505072 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 2144505072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2923612480).

2144505072 is an abundant number, since it is smaller than the sum of its proper divisors (3702719888).

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

2144505072 is a wasteful number, since it uses less digits than its factorization.

2144505072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6350 (or 6344 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 2144505072 is about 46308.8012369139. The cubic root of 2144505072 is about 1289.5623922795.

Adding to 2144505072 its reverse (2705054412), we get a palindrome (4849559484).

The spelling of 2144505072 in words is "two billion, one hundred forty-four million, five hundred five thousand, seventy-two".