4020303 has 16 divisors (see below), whose sum is σ = 6252800. Its totient is φ = 2296728.

The previous prime is 4020293. The next prime is 4020307. The reversal of 4020303 is 3030204.

It is not a de Polignac number, because 4020303 - 2⁴ = 4020287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925 + ... + 2982.

It is an arithmetic number, because the mean of its divisors is an integer number (390800).

Almost surely, 2^4020303 is an apocalyptic number.

4020303 is a deficient number, since it is larger than the sum of its proper divisors (2232497).

4020303 is an equidigital number, since it uses as much as digits as its factorization.

4020303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931 (or 3917 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 4020303 is about 2005.0693254848. The cubic root of 4020303 is about 159.0082270969.

Adding to 4020303 its reverse (3030204), we get a palindrome (7050507).

Subtracting from 4020303 its reverse (3030204), we obtain a palindrome (990099).

The spelling of 4020303 in words is "four million, twenty thousand, three hundred three".