2001440322 has 24 divisors (see below), whose sum is σ = 4955947776. Its totient is φ = 571840056.

The previous prime is 2001440279. The next prime is 2001440327. The reversal of 2001440322 is 2230441002.

2001440322 is a `hidden beast` number, since 200 + 1 + 440 + 3 + 22 = 666.

2001440322 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2001440295 and 2001440304.

It is not an unprimeable number, because it can be changed into a prime (2001440327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7942098 + ... + 7942349.

It is an arithmetic number, because the mean of its divisors is an integer number (206497824).

Almost surely, 2^2001440322 is an apocalyptic number.

2001440322 is an abundant number, since it is smaller than the sum of its proper divisors (2954507454).

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

2001440322 is a wasteful number, since it uses less digits than its factorization.

2001440322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15884462 (or 15884459 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2001440322 is about 44737.4599413065. The cubic root of 2001440322 is about 1260.2234259877.

Adding to 2001440322 its reverse (2230441002), we get a palindrome (4231881324).

The spelling of 2001440322 in words is "two billion, one million, four hundred forty thousand, three hundred twenty-two".