240424042042 has 4 divisors (see below), whose sum is σ = 360636063066. Its totient is φ = 120212021020.

The previous prime is 240424042039. The next prime is 240424042043. The reversal of 240424042042 is 240240424042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240240424042 = 2 ⋅120120212021.

It can be written as a sum of positive squares in only one way, i.e., 239002676641 + 1421365401 = 488879^2 + 37701^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 240424042042.

It is not an unprimeable number, because it can be changed into a prime (240424042043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106010509 + ... + 60106010512.

Almost surely, 2^240424042042 is an apocalyptic number.

240424042042 is a deficient number, since it is larger than the sum of its proper divisors (120212021024).

240424042042 is a wasteful number, since it uses less digits than its factorization.

240424042042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120212021023.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 240424042042 its reverse (240240424042), we get a palindrome (480664466084).

The spelling of 240424042042 in words is "two hundred forty billion, four hundred twenty-four million, forty-two thousand, forty-two".