2001344320 has 56 divisors (see below), whose sum is σ = 4771266048. Its totient is φ = 799603200.

The previous prime is 2001344297. The next prime is 2001344321. The reversal of 2001344320 is 234431002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001344321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313965 + ... + 320275.

Almost surely, 2^2001344320 is an apocalyptic number.

2001344320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001344320 is an abundant number, since it is smaller than the sum of its proper divisors (2769921728).

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

2001344320 is an equidigital number, since it uses as much as digits as its factorization.

2001344320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7319 (or 7309 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2001344320 is about 44736.3869797283. The cubic root of 2001344320 is about 1260.2032761815.

Adding to 2001344320 its reverse (234431002), we get a palindrome (2235775322).

The spelling of 2001344320 in words is "two billion, one million, three hundred forty-four thousand, three hundred twenty".