4000303 has 2 divisors, whose sum is σ = 4000304. Its totient is φ = 4000302.

The previous prime is 4000301. The next prime is 4000309. The reversal of 4000303 is 3030004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4000303 - 2¹ = 4000301 is a prime.

Together with 4000301, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4000303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000151 + 2000152.

It is an arithmetic number, because the mean of its divisors is an integer number (2000152).

Almost surely, 2^4000303 is an apocalyptic number.

4000303 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000303 is an equidigital number, since it uses as much as digits as its factorization.

4000303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 4000303 is about 2000.0757485655. The cubic root of 4000303 is about 158.7441132833.

Adding to 4000303 its reverse (3030004), we get a palindrome (7030307).

Subtracting from 4000303 its reverse (3030004), we obtain a cube (970299 = 99³).

The spelling of 4000303 in words is "four million, three hundred three", and thus it is an aban number.