4042242012 has 12 divisors (see below), whose sum is σ = 9431898056. Its totient is φ = 1347414000.

The previous prime is 4042241999. The next prime is 4042242023. The reversal of 4042242012 is 2102422404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 4042242012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168426739 + ... + 168426762.

Almost surely, 2^4042242012 is an apocalyptic number.

It is an amenable number.

4042242012 is an abundant number, since it is smaller than the sum of its proper divisors (5389656044).

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

4042242012 is a wasteful number, since it uses less digits than its factorization.

4042242012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336853508 (or 336853506 counting only the distinct ones).

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

The square root of 4042242012 is about 63578.6285791067. The cubic root of 4042242012 is about 1592.9694140166.

Adding to 4042242012 its reverse (2102422404), we get a palindrome (6144664416).

The spelling of 4042242012 in words is "four billion, forty-two million, two hundred forty-two thousand, twelve".