4239401 has 2 divisors, whose sum is σ = 4239402. Its totient is φ = 4239400.

The previous prime is 4239397. The next prime is 4239419. The reversal of 4239401 is 1049324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2483776 + 1755625 = 1576^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 4239401 - 2² = 4239397 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4239491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119700 + 2119701.

It is an arithmetic number, because the mean of its divisors is an integer number (2119701).

Almost surely, 2^4239401 is an apocalyptic number.

It is an amenable number.

4239401 is a deficient number, since it is larger than the sum of its proper divisors (1).

4239401 is an equidigital number, since it uses as much as digits as its factorization.

4239401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4239401 is about 2058.9805730021. The cubic root of 4239401 is about 161.8458244602.

The spelling of 4239401 in words is "four million, two hundred thirty-nine thousand, four hundred one".