4412443421 has 2 divisors, whose sum is σ = 4412443422. Its totient is φ = 4412443420.

The previous prime is 4412443391. The next prime is 4412443433. The reversal of 4412443421 is 1243442144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3714902500 + 697540921 = 60950^2 + 26411^2 .

It is a cyclic number.

It is not a de Polignac number, because 4412443421 - 2¹⁴ = 4412427037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4412443481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2206221710 + 2206221711.

It is an arithmetic number, because the mean of its divisors is an integer number (2206221711).

Almost surely, 2^4412443421 is an apocalyptic number.

It is an amenable number.

4412443421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4412443421 is an equidigital number, since it uses as much as digits as its factorization.

4412443421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 29.

The square root of 4412443421 is about 66426.2254008159. The cubic root of 4412443421 is about 1640.1858084389.

Adding to 4412443421 its reverse (1243442144), we get a palindrome (5655885565).

The spelling of 4412443421 in words is "four billion, four hundred twelve million, four hundred forty-three thousand, four hundred twenty-one".