4242242 has 4 divisors (see below), whose sum is σ = 6363366. Its totient is φ = 2121120.

The previous prime is 4242241. The next prime is 4242247. The reversal of 4242242 is 2422424.

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., 2307361 + 1934881 = 1519^2 + 1391^2 .

It is not an unprimeable number, because it can be changed into a prime (4242241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060559 + ... + 1060562.

Almost surely, 2^4242242 is an apocalyptic number.

4242242 is a deficient number, since it is larger than the sum of its proper divisors (2121124).

4242242 is a wasteful number, since it uses less digits than its factorization.

4242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121123.

The product of its digits is 1024, while the sum is 20.

The square root of 4242242 is about 2059.6703619754. The cubic root of 4242242 is about 161.8819696069.

Adding to 4242242 its reverse (2422424), we get a palindrome (6664666).

The spelling of 4242242 in words is "four million, two hundred forty-two thousand, two hundred forty-two".