4040442242 has 4 divisors (see below), whose sum is σ = 6060663366. Its totient is φ = 2020221120.

The previous prime is 4040442221. The next prime is 4040442247. The reversal of 4040442242 is 2422440404.

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., 3687039841 + 353402401 = 60721^2 + 18799^2 .

It is not an unprimeable number, because it can be changed into a prime (4040442247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010110559 + ... + 1010110562.

Almost surely, 2^4040442242 is an apocalyptic number.

4040442242 is a deficient number, since it is larger than the sum of its proper divisors (2020221124).

4040442242 is a wasteful number, since it uses less digits than its factorization.

4040442242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020221123.

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 4040442242 is about 63564.4731119515. The cubic root of 4040442242 is about 1592.7329607350.

Adding to 4040442242 its reverse (2422440404), we get a palindrome (6462882646).

The spelling of 4040442242 in words is "four billion, forty million, four hundred forty-two thousand, two hundred forty-two".