4239449 has 2 divisors, whose sum is σ = 4239450. Its totient is φ = 4239448.

The previous prime is 4239419. The next prime is 4239457. The reversal of 4239449 is 9449324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3829849 + 409600 = 1957^2 + 640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4239449 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4 + 2²¹ + 3¹³ + 9² + 4³ + 4⁷ + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (4239419) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119724 + 2119725.

It is an arithmetic number, because the mean of its divisors is an integer number (2119725).

Almost surely, 2^4239449 is an apocalyptic number.

It is an amenable number.

4239449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4239449 is an equidigital number, since it uses as much as digits as its factorization.

4239449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 4239449 is about 2058.9922292228. The cubic root of 4239449 is about 161.8464352831.

The spelling of 4239449 in words is "four million, two hundred thirty-nine thousand, four hundred forty-nine".