4021240242 has 8 divisors (see below), whose sum is σ = 8042480496. Its totient is φ = 1340413412.

The previous prime is 4021240219. The next prime is 4021240273. The reversal of 4021240242 is 2420421204.

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

4021240242 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335103348 + ... + 335103359.

It is an arithmetic number, because the mean of its divisors is an integer number (1005310062).

Almost surely, 2^4021240242 is an apocalyptic number.

4021240242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4021240242 is a wasteful number, since it uses less digits than its factorization.

4021240242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670206712.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4021240242 is about 63413.2497353668. The cubic root of 4021240242 is about 1590.2058251803.

Adding to 4021240242 its reverse (2420421204), we get a palindrome (6441661446).

The spelling of 4021240242 in words is "four billion, twenty-one million, two hundred forty thousand, two hundred forty-two".