402008303 has 2 divisors, whose sum is σ = 402008304. Its totient is φ = 402008302.

The previous prime is 402008297. The next prime is 402008317. The reversal of 402008303 is 303800204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402008303 - 2⁴ = 402008287 is a prime.

It is a super-2 number, since 2×402008303² = 323221351361879618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402008393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201004151 + 201004152.

It is an arithmetic number, because the mean of its divisors is an integer number (201004152).

Almost surely, 2^402008303 is an apocalyptic number.

402008303 is a deficient number, since it is larger than the sum of its proper divisors (1).

402008303 is an equidigital number, since it uses as much as digits as its factorization.

402008303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402008303 is about 20050.1447126947. The cubic root of 402008303 is about 738.0373503373.

Adding to 402008303 its reverse (303800204), we get a palindrome (705808507).

The spelling of 402008303 in words is "four hundred two million, eight thousand, three hundred three".