8412044421 has 16 divisors (see below), whose sum is σ = 12237761088. Its totient is φ = 5097350400.

The previous prime is 8412044393. The next prime is 8412044437. The reversal of 8412044421 is 1244402148.

It is not a de Polignac number, because 8412044421 - 2¹⁰ = 8412043397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8412044491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217095 + ... + 252891.

It is an arithmetic number, because the mean of its divisors is an integer number (764860068).

Almost surely, 2^8412044421 is an apocalyptic number.

It is an amenable number.

8412044421 is a deficient number, since it is larger than the sum of its proper divisors (3825716667).

8412044421 is a wasteful number, since it uses less digits than its factorization.

8412044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42932.

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 8412044421 is about 91717.1980655755. The cubic root of 8412044421 is about 2033.7638294410.

Adding to 8412044421 its reverse (1244402148), we get a palindrome (9656446569).

The spelling of 8412044421 in words is "eight billion, four hundred twelve million, forty-four thousand, four hundred twenty-one".