4421449 has 2 divisors, whose sum is σ = 4421450. Its totient is φ = 4421448.

The previous prime is 4421447. The next prime is 4421467. The reversal of 4421449 is 9441244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4410000 + 11449 = 2100^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421449 - 2¹ = 4421447 is a prime.

It is a super-2 number, since 2×4421449² = 39098422519202, which contains 22 as substring.

Together with 4421447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4421447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210724 + 2210725.

It is an arithmetic number, because the mean of its divisors is an integer number (2210725).

Almost surely, 2^4421449 is an apocalyptic number.

It is an amenable number.

4421449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421449 is an equidigital number, since it uses as much as digits as its factorization.

4421449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 4421449 is about 2102.7241854318. The cubic root of 4421449 is about 164.1300896234.

It can be divided in two parts, 442 and 1449, that added together give a triangular number (1891 = T₆₁).

The spelling of 4421449 in words is "four million, four hundred twenty-one thousand, four hundred forty-nine".