4040042242 has 4 divisors (see below), whose sum is σ = 6060063366. Its totient is φ = 2020021120.

The previous prime is 4040042203. The next prime is 4040042243. The reversal of 4040042242 is 2422400404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2407963041 + 1632079201 = 49071^2 + 40399^2 .

It is not an unprimeable number, because it can be changed into a prime (4040042243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010010559 + ... + 1010010562.

Almost surely, 2^4040042242 is an apocalyptic number.

4040042242 is a deficient number, since it is larger than the sum of its proper divisors (2020021124).

4040042242 is a wasteful number, since it uses less digits than its factorization.

4040042242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020021123.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4040042242 is about 63561.3266224046. The cubic root of 4040042242 is about 1592.6803993097.

Adding to 4040042242 its reverse (2422400404), we get a palindrome (6462442646).

The spelling of 4040042242 in words is "four billion, forty million, forty-two thousand, two hundred forty-two".