2001342040 has 32 divisors (see below), whose sum is σ = 4518956880. Its totient is φ = 797703552.

The previous prime is 2001341971. The next prime is 2001342047. The reversal of 2001342040 is 402431002.

It is a super-2 number, since 2×2001342040² = 8010739922142723200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001342047) 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, 77079 + ... + 99718.

Almost surely, 2^2001342040 is an apocalyptic number.

2001342040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001342040 is an abundant number, since it is smaller than the sum of its proper divisors (2517614840).

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

2001342040 is a wasteful number, since it uses less digits than its factorization.

2001342040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177091 (or 177087 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2001342040 is about 44736.3614971088. The cubic root of 2001342040 is about 1260.2027976258.

Adding to 2001342040 its reverse (402431002), we get a palindrome (2403773042).

The spelling of 2001342040 in words is "two billion, one million, three hundred forty-two thousand, forty".