2421328849 has 3 divisors (see below), whose sum is σ = 2421378057. Its totient is φ = 2421279642.

The previous prime is 2421328831. The next prime is 2421328891. The reversal of 2421328849 is 9488231242.

It is a happy number.

The square root of 2421328849 is 49207.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2421328849 - 2¹¹ = 2421326801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421398849) 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 2 ways as a sum of consecutive naturals, for example, 24604 + ... + 73810.

It is an arithmetic number, because the mean of its divisors is an integer number (807126019).

Almost surely, 2^2421328849 is an apocalyptic number.

2421328849 is the 49207-th square number.

2421328849 is the 24604-th centered octagonal number.

It is an amenable number.

2421328849 is a deficient number, since it is larger than the sum of its proper divisors (49208).

2421328849 is an frugal number, since it uses more digits than its factorization.

2421328849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98414 (or 49207 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The cubic root of 2421328849 is about 1342.8203848649.

The spelling of 2421328849 in words is "two billion, four hundred twenty-one million, three hundred twenty-eight thousand, eight hundred forty-nine".