2001200340 has 24 divisors (see below), whose sum is σ = 5603361120. Its totient is φ = 533653408.

The previous prime is 2001200329. The next prime is 2001200347. The reversal of 2001200340 is 430021002.

It is a super-2 number, since 2×2001200340² = 8009605601632231200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001200347) 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, 16676610 + ... + 16676729.

It is an arithmetic number, because the mean of its divisors is an integer number (233473380).

Almost surely, 2^2001200340 is an apocalyptic number.

2001200340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001200340 is an abundant number, since it is smaller than the sum of its proper divisors (3602160780).

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

2001200340 is a wasteful number, since it uses less digits than its factorization.

2001200340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33353351 (or 33353349 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2001200340 is about 44734.7777461786. Note that the first 4 decimals coincide. The cubic root of 2001200340 is about 1260.1730550918.

Adding to 2001200340 its reverse (430021002), we get a palindrome (2431221342).

The spelling of 2001200340 in words is "two billion, one million, two hundred thousand, three hundred forty".