2001440224 has 48 divisors (see below), whose sum is σ = 4530290688. Its totient is φ = 852607872.

The previous prime is 2001440201. The next prime is 2001440237. The reversal of 2001440224 is 4220441002.

It is a congruent number.

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, 10657 + ... + 64159.

It is an arithmetic number, because the mean of its divisors is an integer number (94381056).

Almost surely, 2^2001440224 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 2001440224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2265145344).

2001440224 is an abundant number, since it is smaller than the sum of its proper divisors (2528850464).

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

2001440224 is a wasteful number, since it uses less digits than its factorization.

2001440224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53687 (or 53679 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2001440224 is about 44737.4588460275. The cubic root of 2001440224 is about 1260.2234054189.

Adding to 2001440224 its reverse (4220441002), we get a palindrome (6221881226).

It can be divided in two parts, 2001 and 440224, that added together give a square (442225 = 665²).

The spelling of 2001440224 in words is "two billion, one million, four hundred forty thousand, two hundred twenty-four".