4020293 has 2 divisors, whose sum is σ = 4020294. Its totient is φ = 4020292.

The previous prime is 4020287. The next prime is 4020307. The reversal of 4020293 is 3920204.

4020293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3751969 + 268324 = 1937^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 4020293 - 2⁴ = 4020277 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010146 + 2010147.

It is an arithmetic number, because the mean of its divisors is an integer number (2010147).

Almost surely, 2^4020293 is an apocalyptic number.

It is an amenable number.

4020293 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020293 is an equidigital number, since it uses as much as digits as its factorization.

4020293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 4020293 is about 2005.0668318039. The cubic root of 4020293 is about 159.0080952592.

Adding to 4020293 its reverse (3920204), we get a palindrome (7940497).

The spelling of 4020293 in words is "four million, twenty thousand, two hundred ninety-three".