2421322042 has 4 divisors (see below), whose sum is σ = 3631983066. Its totient is φ = 1210661020.

The previous prime is 2421322039. The next prime is 2421322091. The reversal of 2421322042 is 2402231242.

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., 1626589561 + 794732481 = 40331^2 + 28191^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605330509 + ... + 605330512.

Almost surely, 2^2421322042 is an apocalyptic number.

2421322042 is a deficient number, since it is larger than the sum of its proper divisors (1210661024).

2421322042 is a wasteful number, since it uses less digits than its factorization.

2421322042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210661023.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2421322042 is about 49206.9308329630. The cubic root of 2421322042 is about 1342.8191265219.

Adding to 2421322042 its reverse (2402231242), we get a palindrome (4823553284).

The spelling of 2421322042 in words is "two billion, four hundred twenty-one million, three hundred twenty-two thousand, forty-two".