4243442042 has 24 divisors (see below), whose sum is σ = 7407117396. Its totient is φ = 1817944128.

The previous prime is 4243442041. The next prime is 4243442053. The reversal of 4243442042 is 2402443424.

It can be written as a sum of positive squares in 2 ways, for example, as 4177166161 + 66275881 = 64631^2 + 8141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4243441996 and 4243442014.

It is not an unprimeable number, because it can be changed into a prime (4243442041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330128 + ... + 342740.

Almost surely, 2^4243442042 is an apocalyptic number.

4243442042 is a deficient number, since it is larger than the sum of its proper divisors (3163675354).

4243442042 is a wasteful number, since it uses less digits than its factorization.

4243442042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16062 (or 16055 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

The square root of 4243442042 is about 65141.7073924226. The cubic root of 4243442042 is about 1618.9723251491.

Adding to 4243442042 its reverse (2402443424), we get a palindrome (6645885466).

The spelling of 4243442042 in words is "four billion, two hundred forty-three million, four hundred forty-two thousand, forty-two".