2421434321 has 8 divisors (see below), whose sum is σ = 2575071720. Its totient is φ = 2269041408.

The previous prime is 2421434317. The next prime is 2421434341. The reversal of 2421434321 is 1234341242.

It can be written as a sum of positive squares in 4 ways, for example, as 1672810000 + 748624321 = 40900^2 + 27361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2421434321 - 2² = 2421434317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2421434341) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 307106 + ... + 314891.

It is an arithmetic number, because the mean of its divisors is an integer number (321883965).

Almost surely, 2^2421434321 is an apocalyptic number.

It is an amenable number.

2421434321 is a deficient number, since it is larger than the sum of its proper divisors (153637399).

2421434321 is a wasteful number, since it uses less digits than its factorization.

2421434321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622243.

The product of its digits is 4608, while the sum is 26.

The square root of 2421434321 is about 49208.0717057679. The cubic root of 2421434321 is about 1342.8398821333.

Adding to 2421434321 its reverse (1234341242), we get a palindrome (3655775563).

The spelling of 2421434321 in words is "two billion, four hundred twenty-one million, four hundred thirty-four thousand, three hundred twenty-one".