4204344421 has 2 divisors, whose sum is σ = 4204344422. Its totient is φ = 4204344420.

The previous prime is 4204344413. The next prime is 4204344427. The reversal of 4204344421 is 1244434024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3731499396 + 472845025 = 61086^2 + 21745^2 .

It is a cyclic number.

It is not a de Polignac number, because 4204344421 - 2³ = 4204344413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4204344421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4204344427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2102172210 + 2102172211.

It is an arithmetic number, because the mean of its divisors is an integer number (2102172211).

Almost surely, 2^4204344421 is an apocalyptic number.

It is an amenable number.

4204344421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4204344421 is an equidigital number, since it uses as much as digits as its factorization.

4204344421 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4204344421 is about 64840.9162566354. The cubic root of 4204344421 is about 1613.9847569664.

Adding to 4204344421 its reverse (1244434024), we get a palindrome (5448778445).

The spelling of 4204344421 in words is "four billion, two hundred four million, three hundred forty-four thousand, four hundred twenty-one".