2420402242 has 4 divisors (see below), whose sum is σ = 3630603366. Its totient is φ = 1210201120.

The previous prime is 2420402239. The next prime is 2420402273. The reversal of 2420402242 is 2422040242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2422040242 = 2 ⋅1211020121.

It can be written as a sum of positive squares in only one way, i.e., 1722333001 + 698069241 = 41501^2 + 26421^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605100559 + ... + 605100562.

Almost surely, 2^2420402242 is an apocalyptic number.

2420402242 is a deficient number, since it is larger than the sum of its proper divisors (1210201124).

2420402242 is a wasteful number, since it uses less digits than its factorization.

2420402242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210201123.

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

The square root of 2420402242 is about 49197.5837008282. The cubic root of 2420402242 is about 1342.6490704614.

Adding to 2420402242 its reverse (2422040242), we get a palindrome (4842442484).

The spelling of 2420402242 in words is "two billion, four hundred twenty million, four hundred two thousand, two hundred forty-two".