2421424243 has 4 divisors (see below), whose sum is σ = 2767342000. Its totient is φ = 2075506488.

The previous prime is 2421424241. The next prime is 2421424253. The reversal of 2421424243 is 3424241242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2421424243 - 2¹ = 2421424241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421424241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172958868 + ... + 172958881.

It is an arithmetic number, because the mean of its divisors is an integer number (691835500).

Almost surely, 2^2421424243 is an apocalyptic number.

2421424243 is a deficient number, since it is larger than the sum of its proper divisors (345917757).

2421424243 is an equidigital number, since it uses as much as digits as its factorization.

2421424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345917756.

The product of its digits is 12288, while the sum is 28.

The square root of 2421424243 is about 49207.9693037622. The cubic root of 2421424243 is about 1342.8380191660.

Adding to 2421424243 its reverse (3424241242), we get a palindrome (5845665485).

The spelling of 2421424243 in words is "two billion, four hundred twenty-one million, four hundred twenty-four thousand, two hundred forty-three".