2001340042 has 16 divisors (see below), whose sum is σ = 3239137440. Its totient is φ = 921922992.

The previous prime is 2001340021. The next prime is 2001340043. The reversal of 2001340042 is 2400431002.

It is a junction number, because it is equal to n+sod(n) for n = 2001339998 and 2001340025.

It is not an unprimeable number, because it can be changed into a prime (2001340043) 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, 59992 + ... + 87187.

It is an arithmetic number, because the mean of its divisors is an integer number (202446090).

Almost surely, 2^2001340042 is an apocalyptic number.

2001340042 is a deficient number, since it is larger than the sum of its proper divisors (1237797398).

2001340042 is a wasteful number, since it uses less digits than its factorization.

2001340042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147717.

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

The square root of 2001340042 is about 44736.3391662751. The cubic root of 2001340042 is about 1260.2023782595.

Adding to 2001340042 its reverse (2400431002), we get a palindrome (4401771044).

The spelling of 2001340042 in words is "two billion, one million, three hundred forty thousand, forty-two".