2001004340 has 12 divisors (see below), whose sum is σ = 4202109156. Its totient is φ = 800401728.

The previous prime is 2001004333. The next prime is 2001004373. The reversal of 2001004340 is 434001002.

It can be written as a sum of positive squares in 2 ways, for example, as 848673424 + 1152330916 = 29132^2 + 33946^2 .

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 3 ways as a sum of consecutive naturals, for example, 50025089 + ... + 50025128.

It is an arithmetic number, because the mean of its divisors is an integer number (350175763).

Almost surely, 2^2001004340 is an apocalyptic number.

2001004340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001004340 is an abundant number, since it is smaller than the sum of its proper divisors (2201104816).

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

2001004340 is a wasteful number, since it uses less digits than its factorization.

2001004340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100050226 (or 100050224 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2001004340 is about 44732.5870032128. The cubic root of 2001004340 is about 1260.1319127870.

Adding to 2001004340 its reverse (434001002), we get a palindrome (2435005342).

The spelling of 2001004340 in words is "two billion, one million, four thousand, three hundred forty".