40303303 has 2 divisors, whose sum is σ = 40303304. Its totient is φ = 40303302.

The previous prime is 40303283. The next prime is 40303327. The reversal of 40303303 is 30330304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40303303 - 2⁹ = 40302791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40300303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151651 + 20151652.

It is an arithmetic number, because the mean of its divisors is an integer number (20151652).

Almost surely, 2^40303303 is an apocalyptic number.

40303303 is a deficient number, since it is larger than the sum of its proper divisors (1).

40303303 is an equidigital number, since it uses as much as digits as its factorization.

40303303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 40303303 is about 6348.4882452439. The cubic root of 40303303 is about 342.8574150874.

Adding to 40303303 its reverse (30330304), we get a palindrome (70633607).

The spelling of 40303303 in words is "forty million, three hundred three thousand, three hundred three".