2001240242 has 8 divisors (see below), whose sum is σ = 3002063232. Its totient is φ = 1000552500.

The previous prime is 2001240211. The next prime is 2001240257. The reversal of 2001240242 is 2420421002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2001240242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20867 + ... + 66617.

It is an arithmetic number, because the mean of its divisors is an integer number (375257904).

Almost surely, 2^2001240242 is an apocalyptic number.

2001240242 is a deficient number, since it is larger than the sum of its proper divisors (1000822990).

2001240242 is a wasteful number, since it uses less digits than its factorization.

2001240242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67624.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2001240242 is about 44735.2237280647. The cubic root of 2001240242 is about 1260.1814305802.

Adding to 2001240242 its reverse (2420421002), we get a palindrome (4421661244).

The spelling of 2001240242 in words is "two billion, one million, two hundred forty thousand, two hundred forty-two".